icon-sharing.png is from http://www.openshareicons.com/

Shareaholic has made the Open Share Icon freely available for use by others under the
Creative Commons Attribution-Share Alike 3.0 Unported License.


icon-twitter.png is from http://twitter.com/favicon.ico and distributed under fair use
icon-facebook.png is from http://facebook.com/favicon.ico and distributed under fair use
icon-statusnet.png is from http://status.net/favicon.ico and distributed under fair use