Google Groups - Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.
Hologram.cool - All-in-one WebVR creation
DownToMeet - DownToMeet is a platform to organize, find, and attend group events.
Volu by Volograms - Create content in AR with real humans.
Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.
HoloBack - Create and share holographic videos