Snap Skout's free social sharebar plugin features popular social icons, including Skout. Skout is the easiest way to find the best deals and info.

Google Identity Toolkit (GITkit) helps relying party (RP) websites to support federated login easily (http://code.google.com/apis/identitytoolkit).

Social Login by Janrain

With Share Buttons Widget you can share your content at Facebook, Twitter, Google, Digg, Delicious and many more!