Google+ is Google's social network and it has become my preferred social network. Facebook has gotten too political, although I do use it to keep in touch with friends and family. Twitter is great, but Google+ offers so much more - photos, videos, animations, longer postings and comments.
It is a thriving community, with people and groups for all interests, including education and technology.
If you aren't on Google+, check it out. Here are some resources.
Google Plus - tips for using in education, facts and data infographic
Social Media Guide and Resources for Educators