I've received several emails from Yahoo! asking if I'd like to join Publisher, but I can't find their information on what the product really is, how it works, etc. When I go to the publisher.yahoo.com link, all I see is a page to sign up. I'm not willing to sign up until I understand what it's all about. Seems strange that they don't at least have a FAQ or some place where I can get more info, or am I missing something?