Are you prepared for the Microsoft-Yahoo search alliance? Kevin Lee provides tips on a variety of related subjects after discovering most companies are not prepared. For starters, marketers that don't have a Microsoft adCenter account, won't need one before the transition.
One of the transition options is to have your Yahoo account settings and campaigns converted to an adCenter account. Lee advises against that option and suggests you open a new account now or, if you have one already, that you take a close look at whether or not this account is as well-rounded as your Google account.