For technical questions (problem solving) StackOverflow has a good number of very active and knowledgable people. For opinions and more general talk, the Google

For technical questions (problem solving) StackOverflow has a good number of very active and knowledgable people. For opinions and more general talk, the Google+ community is a good place: https://plus.google.com/communities/103113685381486591754 https://plus.google.com/communities/103113685381486591754