I'm currently running two websites, one of my own and I do the coding on one for a friend. I have one adsense account for my site, and another under my friends name for his site. Would I get into trouble if I was to log into google.com/adsense under both accounts on the same IP?
Sometimes use that little tool called forum search, before asking a question - http://forums.digitalpoint.com/showthread.php?t=34204 follow the link you'll get your answer.