Look inside Yahoo! Publisher Network
I'm linking two posts from JenSense in the same day because I think you'd like to make a tour visiting the new Yahoo! Publisher Network. Jen is offering this great tour with screenshots and comments about the first days using YPN.
Yahoo has given me permission to show off some of the control panel features, so live vicariously through me and you can get a peek of what exactly is behind the login, even if you don't have a YPN account.
