I changed the way Weblog Bookwatch
works a little. If a site has been "voting" for a particular book for more than 30 days, it's no longer counted as a mention. Most likely, this >30 day persistence happens because the weblog has mentioned the book in a sidebar instead of a post (which will scroll off the page at some point). I noticed that the list changed very little, with a few books that have been on people's sidebars for months there. I hope this change will more accurately capture the books people are discussing.