Mar 11
28
If you have a YouTube account and it is not tied to a Google account you may not be able to log in in a few weeks, according to the YouTube blog . All YouTube accounts have to be tied to a Google account. Whether this is to help improve the service, or a tie to their non existent Social Circles, or a consolidation motivated by tracking to avoid any potential privacy issues later has yet to be determined.
More here:
Is YouTube, Google Account Merging Another Step Towards Social Platform?