I found this page on Andy Sylvester's FedWiki fedwiki.andysylvester.com 
The following videos will help you learn how to install and use Federated Wiki.
YOUTUBE bnvK5s-_MKI How to add text to a Federated Wiki
YOUTUBE VVuHGCkSHlg Twitter authentication
YOUTUBE 0SBdiX65TYA How to add links to a Federated Wiki page.
Federated Wiki Videos - Set of videos created by Ward Cunningham.