4. Hangouts

Google+ attempts to replicate your real-life social networks with circles. But how can it replicate one of the best aspects of having friends—impromptu hanging out—on the Internet? Google+ has a feature that tries to do just that, cleverly named hangouts.

Hangouts are basically videoconferences that you can start from Google+. Invite people or circles, and folks can join your hangout and shoot the breeze. You can even watch YouTube videos together!

The Lowdown on Hangouts

A few things to know about hangouts:

• Hangouts require the Google voice and video plug-in to work. Download it here: www.google.com/chat/video.

• Each hangout can have a maximum ten participants.

• At 90 minutes, Google+ checks in to make sure that your hangout ...

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