Curt Bonk offers us a look at a promising alternative to the textbook, the wiki book. Essentially, the wiki book is an online book written collectively by its readers. Bonk's post is a valuable contribution because it lists and describes in some detail ten separate wiki books projects. This gives readers some concrete examples they can consider following. Bonk is working on a book applying Thomas Friedman's The World is Flat ideas to learning. Richard Hoeg takes the same tack with this post and presentation (which is worth the six minutes to view). We should be careful, though, about mixing Friedman's political book with educational theory.