diff --git a/src/OAuth2/Client/Provider/Foursquare.php b/src/OAuth2/Client/Provider/Foursquare.php
deleted file mode 100755
index 18e2588..0000000
--- a/src/OAuth2/Client/Provider/Foursquare.php
+++ /dev/null
@@ -1,40 +0,0 @@
-<?php
-
-namespace OAuth2\Client\Provider;
-
-class foursquare extends IdentityProvider
-{
-    public function urlAuthorize()
-    {
-        return 'https://foursquare.com/oauth2/authenticate';
-    }
-
-    public function urlAccessToken()
-    {
-        return 'https://foursquare.com/oauth2/access_token';
-    }
-
-    public function urlUserDetails(\OAuth2\Client\Token\AccessToken $token)
-    {
-        return 'https://api.foursquare.com/v2/users/selfoauth_token='.$token;
-    }
-
-    public function userDetails($response, \OAuth2\Client\Token\AccessToken $token)
-    {
-        die(print_r($response));
-
-        /*$user = new User;
-        $user->uid = $response->response->user->id;
-        $user->name = $response->response->user->name;
-        $user->lastName = $response->response->user->last_name;
-        $user->email = isset($response->response->user->email) ? $response->response->user->email : null;
-        $user->location = isset($response->response->user->hometown->name) ? $response->response->user->hometown->name : null;
-        $user->description = isset($response->response->user->bio) ? $response->response->user->bio : null;
-        $user->imageUrl = $imageHeaders['Location'];
-        $user->urls = array(
-            'Facebook' => $response->response->user->link,
-        );
-
-        return $user;*/
-    }
-}
\ No newline at end of file
diff --git a/src/OAuth2/Client/Provider/Instagram.php b/src/OAuth2/Client/Provider/Instagram.php
deleted file mode 100755
index 5abb7fb..0000000
--- a/src/OAuth2/Client/Provider/Instagram.php
+++ /dev/null
@@ -1,48 +0,0 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * Instagram OAuth2 Provider
- *
- * @package    CodeIgniter/OAuth2
- * @category   Provider
- * @author     Phil Sturgeon
- * @copyright  (c) 2012 HappyNinjas Ltd
- * @license    http://philsturgeon.co.uk/code/dbad-license
- */
-
-class OAuth2_Provider_Instagram extends OAuth2_Provider
-{
-    /**
-     * @var  string  scope separator, most use "," but some like Google are spaces
-     */
-    public $scope_seperator = '+';
-
-    /**
-     * @var  string  the method to use when requesting tokens
-     */
-    public $method = 'POST';
-
-    public function url_authorize()
-    {
-        return 'https://api.instagram.com/oauth/authorize';
-    }
-
-    public function url_access_token()
-    {
-        return 'https://api.instagram.com/oauth/access_token';
-    }
-
-    public function get_user_info(OAuth2_Token_Access $token)
-    {
-        $user = $token->user;
-
-        return array(
-            'uid' => $user->id,
-            'nickname' => $user->username,
-            'name' => $user->full_name,
-            'image' => $user->profile_picture,
-            'urls' => array(
-              'website' => $user->website,
-            ),
-        );
-    }
-}
\ No newline at end of file
diff --git a/src/OAuth2/Client/Provider/Mailchimp.php b/src/OAuth2/Client/Provider/Mailchimp.php
deleted file mode 100755
index 2b43da6..0000000
--- a/src/OAuth2/Client/Provider/Mailchimp.php
+++ /dev/null
@@ -1,36 +0,0 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * Mailchimp OAuth2 Provider
- *
- * @package    CodeIgniter/OAuth2
- * @category   Provider
- * @author     Phil Sturgeon
- * @copyright  (c) 2012 HappyNinjas Ltd
- * @license    http://philsturgeon.co.uk/code/dbad-license
- */
-
-class OAuth2_Provider_Mailchimp extends OAuth2_Provider
-{
-    /**
-     * @var  string  the method to use when requesting tokens
-     */
-    protected $method = 'POST';
-
-    public function url_authorize()
-    {
-        return 'https://login.mailchimp.com/oauth2/authorize';
-    }
-
-    public function url_access_token()
-    {
-        return 'https://login.mailchimp.com/oauth2/token';
-    }
-
-    public function get_user_info(OAuth2_Token_Access $token)
-    {
-        // Create a response from the request
-        return array(
-            'uid' => $token->access_token,
-        );
-    }
-}
diff --git a/src/OAuth2/Client/Provider/Mailru.php b/src/OAuth2/Client/Provider/Mailru.php
deleted file mode 100755
index b10156d..0000000
--- a/src/OAuth2/Client/Provider/Mailru.php
+++ /dev/null
@@ -1,73 +0,0 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * Mailru OAuth2 Provider
- *
- * @package    CodeIgniter/OAuth2
- * @category   Provider
- * @author     Lavr Lyndin
- */
-
-class OAuth2_Provider_Mailru extends OAuth2_Provider
-{
-    public $method = 'POST';
-
-    public function url_authorize()
-    {
-        return 'https://connect.mail.ru/oauth/authorize';
-    }
-
-    public function url_access_token()
-    {
-        return 'https://connect.mail.ru/oauth/token';
-    }
-
-    protected function sign_server_server(array $request_params, $secret_key)
-    {
-        ksort($request_params);
-        $params = '';
-        foreach ($request_params as $key => $value) {
-            $params .= "$key=$value";
-        }
-        return md5($params . $secret_key);
-    }
-
-    public function get_user_info(OAuth2_Token_Access $token)
-    {
-        $request_params = array(
-            'app_id' => $this->client_id,
-            'method' => 'users.getInfo',
-            'uids' => $token->uid,
-            'access_token' => $token->access_token,
-            'secure' => 1
-        );
-
-        $sig = $this->sign_server_server($request_params,$this->client_secret);
-        $url = 'http://www.appsmail.ru/platform/api?'.http_build_query($request_params).'&sig='.$sig;
-
-        $user = json_decode(file_get_contents($url));
-
-        return array(
-            'uid' => $user[0]->uid,
-            'nickname' => $user[0]->nick,
-            'name' => $user[0]->first_name.' '.$user[0]->last_name,
-            'first_name' => $user[0]->first_name,
-            'last_name' => $user[0]->last_name,
-            'email' => isset($user[0]->email) ? $user[0]->email : null,
-            'image' => isset($user[0]->pic_big) ? $user[0]->pic_big : null,
-        );
-    }
-
-    public function authorize($options = array())
-    {
-        $state = md5(uniqid(rand(), TRUE));
-        get_instance()->session->set_userdata('state', $state);
-
-        $params = array(
-            'client_id'         => $this->client_id,
-            'redirect_uri'         => isset($options['redirect_uri']) ? $options['redirect_uri'] : $this->redirect_uri,
-            'response_type'     => 'code',
-        );
-
-        redirect($this->url_authorize().'?'.http_build_query($params));
-    }
-}
diff --git a/src/OAuth2/Client/Provider/Paypal.php b/src/OAuth2/Client/Provider/Paypal.php
deleted file mode 100755
index 3d6b637..0000000
--- a/src/OAuth2/Client/Provider/Paypal.php
+++ /dev/null
@@ -1,59 +0,0 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * PayPal OAuth2 Provider
- *
- * @package    CodeIgniter/OAuth2
- * @category   Provider
- * @author     Phil Sturgeon
- * @copyright  (c) 2012 HappyNinjas Ltd
- * @license    http://philsturgeon.co.uk/code/dbad-license
- */
-
-class OAuth2_Provider_Paypal extends OAuth2_Provider
-{
-    /**
-     * @var  string  default scope (useful if a scope is required for user info)
-     */
-    protected $scope = array('https://identity.x.com/xidentity/resources/profile/me');
-
-    /**
-     * @var  string  the method to use when requesting tokens
-     */
-    protected $method = 'POST';
-
-    public function url_authorize()
-    {
-        return 'https://identity.x.com/xidentity/resources/authorize';
-    }
-
-    public function url_access_token()
-    {
-        return 'https://identity.x.com/xidentity/oauthtokenservice';
-    }
-
-    public function get_user_info(OAuth2_Token_Access $token)
-    {
-        $url = 'https://identity.x.com/xidentity/resources/profile/me?' . http_build_query(array(
-            'oauth_token' => $token->access_token
-        ));
-
-        $user = json_decode(file_get_contents($url));
-        $user = $user->identity;
-
-        return array(
-            'uid' => $user['userId'],
-            'nickname' => url_title($user['fullName'], '_', true),
-            'name' => $user['fullName'],
-            'first_name' => $user['firstName'],
-            'last_name' => $user['lastName'],
-            'email' => $user['emails'][0],
-            'location' => $user->addresses[0],
-            'image' => null,
-            'description' => null,
-            'urls' => array(
-                'PayPal' => null
-            )
-        );
-    }
-
-}
diff --git a/src/OAuth2/Client/Provider/Soundcloud.php b/src/OAuth2/Client/Provider/Soundcloud.php
deleted file mode 100755
index d67f1b5..0000000
--- a/src/OAuth2/Client/Provider/Soundcloud.php
+++ /dev/null
@@ -1,51 +0,0 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * Soundcloud OAuth2 Provider
- *
- * @package    CodeIgniter/OAuth2
- * @category   Provider
- * @author     Phil Sturgeon
- * @copyright  (c) 2012 HappyNinjas Ltd
- * @license    http://philsturgeon.co.uk/code/dbad-license
- */
-
-class OAuth2_Provider_Soundcloud extends OAuth2_Provider
-{
-    /**
-     * @var  string  the method to use when requesting tokens
-     */
-    protected $method = 'POST';
-
-    public function url_authorize()
-    {
-        return 'https://soundcloud.com/connect';
-    }
-
-    public function url_access_token()
-    {
-        return 'https://api.soundcloud.com/oauth2/token';
-    }
-
-    public function get_user_info(OAuth2_Token_Access $token)
-    {
-        $url = 'https://api.soundcloud.com/me.json?'.http_build_query(array(
-            'oauth_token' => $token->access_token,
-        ));
-
-        $user = json_decode(file_get_contents($url));
-
-        // Create a response from the request
-        return array(
-            'uid' => $user->id,
-            'nickname' => $user->username,
-            'name' => $user->full_name,
-            'location' => $user->country.' ,'.$user->country,
-            'description' => $user->description,
-            'image' => $user->avatar_url,
-            'urls' => array(
-                'MySpace' => $user->myspace_name,
-                'Website' => $user->website,
-            ),
-        );
-    }
-}
diff --git a/src/OAuth2/Client/Provider/Vkontakte.php b/src/OAuth2/Client/Provider/Vkontakte.php
deleted file mode 100755
index 91a421f..0000000
--- a/src/OAuth2/Client/Provider/Vkontakte.php
+++ /dev/null
@@ -1,54 +0,0 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * Vkontakte OAuth2 Provider
- *
- * @package    CodeIgniter/OAuth2
- * @category   Provider
- * @author     Lavr Lyndin
- */
-
-class OAuth2_Provider_Vkontakte extends OAuth2_Provider
-{
-    protected $method = 'POST';
-    public $uid_key = 'user_id';
-
-    public function url_authorize()
-    {
-        return 'http://oauth.vk.com/authorize';
-    }
-
-    public function url_access_token()
-    {
-        return 'https://oauth.vk.com/access_token';
-    }
-
-    public function get_user_info(OAuth2_Token_Access $token)
-    {
-        $scope = array('nickname', 'screen_name','photo_big');
-        $url = 'https://api.vk.com/method/users.get?'.http_build_query(array(
-            'uids' => $token->uid,
-            'fields' => implode(",",$scope),
-            'access_token' => $token->access_token,
-        ));
-
-        $user = json_decode(file_get_contents($url))->response;
-
-        if(sizeof($user)==0)
-            return null;
-        else
-            $user = $user[0];
-
-        return array(
-            'uid' => $user->uid,
-            'nickname' => isset($user->nickname) ? $user->nickname : null,
-            'name' => isset($user->name) ? $user->name : null,
-            'first_name' => isset($user->first_name) ? $user->first_name : null,
-            'last_name' => isset($user->last_name) ? $user->last_name : null,
-            'email' => null,
-            'location' => null,
-            'description' => null,
-            'image' => isset($user->photo_big) ? $user->photo_big : null,
-            'urls' => array(),
-        );
-    }
-}
diff --git a/src/OAuth2/Client/Provider/Windowslive.php b/src/OAuth2/Client/Provider/Windowslive.php
deleted file mode 100755
index af61f99..0000000
--- a/src/OAuth2/Client/Provider/Windowslive.php
+++ /dev/null
@@ -1,60 +0,0 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * Windows Live OAuth2 Provider
- *
- * @package    CodeIgniter/OAuth2
- * @category   Provider
- * @author     Phil Sturgeon
- * @copyright  (c) 2012 HappyNinjas Ltd
- * @license    http://philsturgeon.co.uk/code/dbad-license
- */
-
-class OAuth2_Provider_Windowslive extends OAuth2_Provider
-{
-    protected $scope = array('wl.basic', 'wl.emails');
-
-    /**
-     * @var  string  the method to use when requesting tokens
-     */
-    protected $method = 'POST';
-
-    // authorise url
-    public function url_authorize()
-    {
-        return 'https://oauth.live.com/authorize';
-    }
-
-    // access token url
-    public function url_access_token()
-    {
-        return 'https://oauth.live.com/token';
-    }
-
-    // get basic user information
-    /********************************
-    ** this can be extended through the
-    ** use of scopes, check out the document at
-    ** http://msdn.microsoft.com/en-gb/library/hh243648.aspx#user
-    *********************************/
-    public function get_user_info(OAuth2_Token_Access $token)
-    {
-        // define the get user information token
-        $url = 'https://apis.live.net/v5.0/me?'.http_build_query(array(
-            'access_token' => $token->access_token,
-        ));
-
-        // perform network request
-        $user = json_decode(file_get_contents($url));
-
-        // create a response from the request and return it
-        return array(
-            'uid'         => $user->id,
-            'name'         => $user->name,
-            'nickname'     => url_title($user->name, '_', true),
-//            'location'     => $user[''], # scope wl.postal_addresses is required
-                                          # but won't be implemented by default
-            'locale'     => $user->locale,
-            'urls'         => array('Windows Live' => $user->link),
-        );
-    }
-}
diff --git a/src/OAuth2/Client/Provider/Yandex.php b/src/OAuth2/Client/Provider/Yandex.php
deleted file mode 100755
index c25e4db..0000000
--- a/src/OAuth2/Client/Provider/Yandex.php
+++ /dev/null
@@ -1,115 +0,0 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * Yandex OAuth2 Provider
- *
- * @package    CodeIgniter/OAuth2
- * @category   Provider
- * @author     Lavr Lyndin
- */
-
-class OAuth2_Provider_Yandex extends OAuth2_Provider
-{
-    public $method = 'POST';
-
-    public function url_authorize()
-    {
-        return 'https://oauth.yandex.ru/authorize';
-    }
-
-    public function url_access_token()
-    {
-        return 'https://oauth.yandex.ru/token';
-    }
-
-    public function get_user_info(OAuth2_Token_Access $token)
-    {
-        $opts = array(
-            'http' => array(
-                'method' => 'GET',
-                'header' => 'Authorization: OAuth '.$token->access_token
-            )
-        );
-        $_default_opts = stream_context_get_params(stream_context_get_default());
-
-        $opts = array_merge_recursive($_default_opts['options'], $opts);
-        $context = stream_context_create($opts);
-        $url = 'http://api-yaru.yandex.ru/me/?format=json';
-
-        $user = json_decode(file_get_contents($url,false,$context));
-
-        preg_match("/\d+$/",$user->id,$uid);
-
-        return array(
-            'uid' => $uid[0],
-            'nickname' => isset($user->name) ? $user->name : null,
-            'name' => isset($user->name) ? $user->name : null,
-            'first_name' => isset($user->first_name) ? $user->first_name : null,
-            'last_name' => isset($user->last_name) ? $user->last_name : null,
-            'email' => isset($user->email) ? $user->email : null,
-            'location' => isset($user->hometown->name) ? $user->hometown->name : null,
-            'description' => isset($user->bio) ? $user->bio : null,
-            'image' => $user->links->userpic,
-        );
-    }
-
-    public function access($code, $options = array())
-    {
-        $params = array(
-            'client_id'     => $this->client_id,
-            'client_secret' => $this->client_secret,
-            'grant_type'     => isset($options['grant_type']) ? $options['grant_type'] : 'authorization_code',
-        );
-
-        switch ($params['grant_type'])
-        {
-            case 'authorization_code':
-                $params['code'] = $code;
-                $params['redirect_uri'] = isset($options['redirect_uri']) ? $options['redirect_uri'] : $this->redirect_uri;
-            break;
-
-            case 'refresh_token':
-                $params['refresh_token'] = $code;
-            break;
-        }
-
-        $response = null;
-        $url = $this->url_access_token();
-
-        $curl = curl_init($url);
-
-        $headers[] = 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8;';
-        curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
-
-//        curl_setopt($curl, CURLOPT_USERAGENT, 'yamolib-php');
-        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
-        curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 30);
-        curl_setopt($curl, CURLOPT_TIMEOUT, 80);
-        curl_setopt($curl, CURLOPT_POST, true);
-        curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($params));
-        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
-        //        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
-        //        curl_setopt($curl, CURLOPT_CAINFO, dirname(__FILE__) . '/../data/ca-certificate.crt');
-
-        $response = curl_exec($curl);
-        curl_close($curl);
-
-        $return = json_decode($response, true);
-
-        if ( ! empty($return['error']))
-        {
-            throw new OAuth2_Exception($return);
-        }
-
-        switch ($params['grant_type'])
-        {
-            case 'authorization_code':
-                return OAuth2_Token::factory('access', $return);
-            break;
-
-            case 'refresh_token':
-                return OAuth2_Token::factory('refresh', $return);
-            break;
-        }
-    }
-
-}