As our first monthly mob-catalog of a Legacy Library, we're tackling the 1905 collection of the U.S.S. California today (until noon on Thursday). Three hours in, we're up to about 730 books (not bad at all!). More info in Tim's post, and if you want to jump in and help, sign up here!
[Update, 4 March: Along with the California's library, members jumped in overnight and cataloged the collection of the H.M.S. Beagle too!]