diff --git a/Readme.md b/Readme.md
index b239b11..6e28a7a 100644
--- a/Readme.md
+++ b/Readme.md
@@ -59,8 +59,15 @@ Examples:
```
-TODO:
-Twitter via etc.
+### Services specific options
+
+#### Twitter
+
+You can specify `via` (site’s Twitter) and `related` (any other Twitter you want to advertise) values for `
+```
### Experimental Google+ counter
@@ -108,6 +115,21 @@ And use in like any other button:
See sources (`src` folder) for available options and class names.
+### Title, description and image for Facebok and Twitter
+
+You can add they using [Facebook Open Graph](http://davidwalsh.name/facebook-meta-tags) and [Twitter Card](https://dev.twitter.com/docs/cards):
+
+```html
+
+
+
+
+
+
+
+
+```
+
---