Google Groups - Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.

X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.

DownToMeet - DownToMeet is a platform to organize, find, and attend group events.

Vingle - Mingle with people who share your interests

Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.

Reddit - Reddit gives you the best of the internet in one place. Get a constantly updating feed of breaking news, fun stories, pics, memes, and videos just for you.