Facebook founder and CEO Mark Zuckerberg is playing a game with Google+ the new social network now in an active trial phase, and it's called now you see me, now you don't.

Zuckerberg was the most followed person on Google+, Google's new social network project, seeking to be provide Real-life share rethought for the web through Circles, Hangouts, Sparks and more, and he may very well still be. But Zuckerberg has now gone private with his Google+ settings.

Before Zuckerberg went private he had 35,000 followers. Now, that number is unknown, as his followers are no longer visible now that he's tweaked his privacy settings on Google+.

Google founders Larry Page and Sergey Brin have also activated privacy settings on their Google+ accounts so the number of followers they have can no longer be tracked. Neither Page nor Brin had as many followers as Zuckerberg, however.

Google+ debuted through an invitation only trial phase in June 28 and since its debut more than 10 million members have joined the social network. That number is expected to increase dramatically in the coming months, as more users are allowed to join the social network. Already Google has made various changes to Google+ based upon feedback and observations during the early phase of public deployment, and more are expected continually as the network evolves.

Now that Zuckerberg has changed his privacy settings, no longer revealing how many followers he has, statistics show tech blogger Robert Scoble as having the most Google+ followers.