With one click, AddThis enables you to instantly share and bookmark web pages, blogs, news, photos, videos, and any other content to the most popular destinations. And it’s totally free! OVER 50 SUPPORTED SERVICES: AddThis for Firefox is customizable, so you can share the way you want. We currently support over 50 services, including: AIM, Blogger, Delicious, Digg, Facebook, FriendFeed, Google