First off - wow can't believe I didn't come across this plugin sooner.
However I'm having trouble getting the Facebook it plugin to work though, as clicking on it doesn't generate a link when clicked like it does with twitter. It's not my browser or facebook account as it works when I click the button here: http://www.longtailvideo.com/addons/plugins/124/Facebook-It. The url I'm redirected to is: http://www.facebook.com/sharer/sharer.php?u=true instead of http://www.facebook.com/sharer/sharer.php?u=http%253A%2F%2Fwww.longtailvideo.com%2Faddons%2Fplugins%2F124%2FFacebook-It as would be the case for the url was passed like for the previous link.
Any idea what could be causing this? I've tried on normal WP, WPMU, on different themes, have disabled plugins, etc.