[Discover] Y Combinator: Startup News http://news.ycombinator.com/ (ycombinator news articles technology)
 [Discover] SlideShare is the best place to share powerpoint presentations http://www.slideshare.net/ (sharing slides presentations presentation)
 [Discover] the childhood beliefs site - I Used To Believe http://iusedtobelieve.com/ (psychology social kids nostalgia)
 [Discover] Study: Facebook profiles can be used to detect narcissism http://www.physorg.com/news141308850.html (social psychology facebook narcissism)
 [Discover] Social Networking with Joomla! http://www.jomsocial.com/ (cms social plugin joomla)
 [Discover] Thinglink : Featured http://thinglink.org/index.html (social things)
 [Discover] Fooga.org http://fooga.org/ (collaboration video social open)
 [Discover] Summize cool links filter http://summize.com/search?q=cool+filter%3Alinks (search social twitter trends)
 [Discover] apophenia http://www.zephoria.org/thoughts/ (blog research social culture)
 [Discover] newsvine http://www.newsvine.com/ (news social search community)
 [Discover] oursignal.com http://oursignal.com/ (delicious digg aggregator visualization)
 [Discover] Lifehacker Top 10: Top 10 Conversation Hacks http://lifehacker.com/399895/top-10-conversation-hacks (skills psychology lifehacks tips)
 [Discover] reddit.com: what's new online! http://www.reddit.com/ (community tools social tagging)
 [Discover] popurls® | the original buzz aggregator http://popurls.com/ (social tools search technology)
 [Discover] Facebook Group vs Facebook Fan Page: What's Better? http://www.searchenginejournal.com/facebook-group-vs-facebook-fan-page-whats-better/7761/ (facebook socialmedia ann.smarty social)