Books written by a cast of thousands aren't usually very good. The most common problem is that the multiple-author book winds up reading like a bunch of chapters written by different people for different audiences in different styles all slapped together, with a table of contents and index added as an afterthought.
That isn't true of "jQuery Cookbook" (O'Reilly, 2009, 451 pp., $34.99, ISBN 978-0-596-15977-1), subtitled "Solutions & Examples for jQuery Developers" and written by "jQuery Community Experts" (19 chapter authors and 4 tech editors). I don't know who was responsible for unifying the content, but the book works. It hangs together in a logical way, and with few exceptions, it reads well. Some sections are especially well-done -- for example, chapter 5, "Faster, Simpler, More Fun" by Michael Geary and Scott González.
[ Also on InfoWorld, check out the booms and the busts of the last year in "Software development's winners and losers, 2009 edition"| Keep up with app dev issues and trends with InfoWorld's Fatal Exception and Strategic Developer ]
By the way, the title of this blog entry is a TV and film reference. If you don't get the joke, find and view the classic "Twilight Zone" episode "To Serve Man" (on YouTube, for example). For bonus points, view "Madagascar" and find the scene where Sacha Baron Cohen's lemur character says nearly the same thing.