For example, you could maintain your ‘publisher@gmail.com’ account for services like Gmail and Webmaster Tools, but create a new Google Account associated with ‘publisher@yoursite.com’ just to use for your AdSense account.

What happens if I don’t update?

If you choose not to update your account after the requirement change, you’ll no longer be able to sign in to your account. As a result, we encourage you to begin updating your accounts as soon as possible.

for more  >>  Make the move…to Google Accounts

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