Facebook Banners
Facebook Like box
http://developers.facebook.com/docs/reference/plugins/like-box/
Facebook Like button
http://developers.facebook.com/docs/reference/plugins/like/
Facebook Social Plugins
http://developers.facebook.com/docs/plugins
Facebook touch site for tablet devices
Facebook Fan Page apps
http://www.facebook.com/Fanpageapps
Facebook hacked, report here