The Samurai Archives Wiki (SamuraiWiki) is now live and online: http://wiki.samurai-archives.com/
We have already added a tremendous amount of information, but we need all the help we can get to build the largest repository of pre-20th century Japanese history on the internet. All you need to do to contribute is to sign up. If you decide to help out, just be sure to read the information on the main page on how to edit, and on the correct formatting.
Currently the main areas that need editing and adding are the Edo and Bakumatsu period (info on the 47 Ronin, Shinsengumi, etc) and information on the arms and armors of the Samurai. We also need to build the Samurai movie database as well as the history and fiction book database.