I saw a blog which was displaying websites inside a frame when we click any links in that blog.
I mean. When you click a link to wordpress.org in the blog site named xyz.com, a new window will be opened and there are two frames. in the top frame, you have a header from xyz.com and in bottom frame wordpress.org is displayed.
And the URL is something link xyz.com/go/go.php?url=http://www.wordpress.org/
Any idea how its done or is there a hack for this?