PUBLIC MARKS from elimam with tag social

Ringside Social Application Server enables website owners to weave social capabilities directly into existing websites while seamlessly integrating with other social networks such as Facebook.

Top 40 Free Downloadable Open Source Social Networking Software

Create, distribute, and manage social media campaigns Measure campaign effectiveness in real time Distribute content through widgets Import and manage your contacts Maintain your digital content library

Crowdstorm is a social shopping 2.0 experience where you can see the buzz around products.

Mesh Tennis is a social network for people who want to play more tennis. We want to connect everyone in the tennis world!

social bookmarking community focused entirely on products and shopping

Upcoming.org is a social event calendar. Manage your events, share events with friends and family, and syndicate your calendar to your own site.

Askeet is a community based Q&A repository. Anyone can post a question about any subject, or answer an existing question. Registration and use are completely free. If you need an answer, ask your question, register to its RSS feed of answers, and just wait until your news aggregator pops out with an answer. Questions and answers can be rated, so that the most interesting questions and the most useful answers come first. If you have knowledge to share, pay askeet a visit from time to time, you might even earn some money.