EmbedCode

Embed code using Gist

1. Upload your code to Github as a Gist
2. Copy the embed code
3. Past it to your blog and done

Embed code using GitHub

1. Upload your script to a repository in Github
2. Copy the link of the file
3. Put this scr http://gist-it.appspot.com/link-of-your-file in script tag, more infor Gist-it.

However, there are some problems with this method: It cannot display a notebook and it does not update modifications