I have written an article about why Google+ is no threat to Facebook on Trak.in.
Facebook is personal. That makes it successful. There are many people who are on Facebook but they are not on Twitter. You know why? Because Twitter is NOT personal! When I login to Facebook I see updates FROM my friends, and ABOUT my friends. Who changed the relationship status, who got a kid, who changed the display picture, who friended whom etc. The news that matters to me the most! It is not the same on Twitter. And it is not the same on Google+ either.
Facebook is a community. It’s about people. Google is a robot. It’s about content. Social networking is about people. So Facebook will prevail over Google+.
Read the full article on Trak.in