Please add to this list or add a +1 to agree with a suggestion.

Social Networks

• Political Crunch
• Anobii
• blip.tv +3 DONE!
• Care2
• Corkd +3 DONE!
• Current
• Dandelife
• Dilettante
• Edenbee
• Fotocommunity
• FriendFeed +4
• Gamertag +2
• Gamespot +1
• GodTube
• GuildCafe +1
• Hyves.net
• Skitch +3
• iLike
• Iconbuffet+1
• Iminlikewithyou +2
• Instructables
• JamBase
• Kirtsy
• LibraryThing +6 DONE!
• LiveLeak
• lokalisten
• ma.gnolia +6 DONE!
• Mahalo +4
• Mixx +2
• Mosio
• Model.se
• Netlog
• Netvibes +8 DONE!
• Netvouz (bookmarking, not sure if Social or Other)
• Photoshop Express +1
• Plaxo +4 DONE!
• Profilactic
• Pwned
• posterous +1
• RedBubble +4 DONE!
• Satisfaction +3
• Seesmic
• Shelfari +3
• sk*rt
• Soup
• Spock.com +1
• Suicide Girls +3
• Tumblr +19 DONE!
• Ustream.tv +1
• Utterz+1
• Viddler +2
• Vimeo +6
• Virb +9 DONE!
• Wakoopa +1
• Wis.dm
• Xing (formerly known as OpenBC) +2
• Yahoo! Live
• Yahoo! Mash
• Yelp! +4
• Identi.ca +1
• Zune Social +5 DONE!

Other

IM Services