As soon as search engines stop caring. As it stands, they care. See: http://raventools.com/blog/forbes-reports-that-google-plus-will-be-universal-ranking-signal

As soon as search engines stop caring. As it stands, they care. See: http://raventools.com/blog/forbes-reports-that-google-plus-will-be-universal-ranking-signal-then-pulls-the-article/ http://raventools.com/blog/forbes-reports-that-google-plus-w...