Sphinn is social network for search and interactive marketers that incorporates a variety of tools and features for this niche market. The first thing you’ll see when you enter sphinn.com is “Hot Topics”, which is a user-voted news section complete with discussion as well. Users can submit stories and share by simply entering the source URL and if enough users “Sphinn it” the story will move to the Hot Topics section. Users can also start discussions and thereby share knowledge or receive advice and if these topics are voted on enough, they can also move to the “Hot Topics” section. Like other social networking sites, users can also add friends and view profiles and finally, there is also a calendar option for sharing upcoming events.