У вашего броузера проблема в совместимости с HTML5
Google has tried several times, without much success, to take on Facebook and master social networking. Now it is making its biggest effort yet.
The Google+ Project is meant for sharing with groups — like colleagues, roommates or hiking friends — not with all of one's friends or the entire Web. It also offers group text messaging and video chat.
Google+
https://plus.google.com/up/start/?sw=1&type=st
Read the full story here:
http://www.nytimes.com/2011/06/29/technology/29google.html
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