Setting Up a Surveillance System using Google+ Hangout
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It is a very simple system, more of technical interest rather than practical value. You can use Google Hangouts as an on-demand remote camera viewer. First, create a second Google Account, and put the alternate account in its own circle. Then, start a hangout with just that circle. When you want to monitor your house, you can just join the hangout with your alternate account, and you should see what's happening.
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