There are many different Google+ Communities that are geared towards education professionals. I joined the Google Apps for Education Community. I've begun to incorporate Google Apps into my classroom a lot more and I am interested in learning how I can continue to use it in my classroom.
Link:
https://plus.google.com/communities/101802680117484972712The following are content specific Google+ Communities that I checked out. Something I noticed within these communities was the number of teachers posting and asking for advice and others reaching out to share what they knew or ideas they had. I think that this is really reflective of how these forms of social media are allowing teachers to work together in very different capacities than in the past.
Links:
https://plus.google.com/communities/108806596170395806531 (US History)
https://plus.google.com/communities/105749379394936886921 (Georgaphy)
https://plus.google.com/u/0/communities/102654955447474099260 (History and Social Science Teachers)