March 06; useful discursive comparison by judges of top contenders in each of many categories, which rhetorically can be used to teach students how to write about the Internet; sizeable honorable mention lists
You sign up, enter the name of a book, then find out what other folks who liked that book also liked; a tag cloud for the book leads to other books on this topic. Quite addictive, and I just used it to look at the info. around one book.