And Gottheil also noted that adding games to the site, while not surprising, is a smart move. If people are able to access great games and engage with Circles of gamers, it easily could .

"I think Facebook has to be nervous about Google+ taking away some of its time-on-site more than taking away users," he added.

In today's blog post, Gundotra noted that users will find their high scores, other games that friends have played recently and invitations to play with friends and family. And he also noted that Circles will only be updated with a user's scores and game play if they are interested in gaming, as well.

"Today we're starting to gradually roll out games in Google+," wrote Gundotra. "We look forward to making them fully available to everyone in Google+ soon. When you see a Games page in your account, please give games a try and send us feedback. Look for the "send feedback" button in the bottom right-hand corner of any page in Google+."

Sharon Gaudin covers the Internet and Web 2.0, emerging technologies, and desktop and laptop chips for Computerworld. Follow Sharon on Twitter at , on or subscribe to . Her e-mail address is sgaudin@computerworld.com.