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

pricendo - Kassen & Weil GbR develops pricendo. A new product search on the german market.

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

SearchLikes - Search activity Vkontakte (likes and comments)

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

Pricena - pricena offers an online platform that enables its users to compare prices of electronic devices, home appliances, apparel, and more.