I tried to create an AdSense account for YouTube revenue share. I already use Adwords and several other services via this account... but I do NOT yet use Adsense. When I try to sign up for AdSense it asks me if I want to use my existing account for Adsense, and I do...but when I select that option and I enter my Google account login info I get "A user with the email you specified already exists".  Of course that user exists...it's ME! It's not letting me activate Adsense for my existing account, it's forcing me to create an entirely new Google account just for Adsense, which I don't want.