Tim O'Hara (aka Timmy V.) of The Lillingtons has created a new website in in order to help educate and protect people in the entertainment industry. On January 1st, Tim will launch badpromoter.com. The site will feature a database of promoters and will encourage bands and performers to submit information on bad promoters to help others avoid them in the future.
Tim notes that this isn't a permanent list and if a promoter makes an effort to resolve the issue, they will be able to have their name removed from the list.
You can find some more details in a EXPN/ESPN feature here.