Mainstream & Large Scale Social Networks
Winner: Twitter
Runner-up: Facebook
Embeddable Widgets
Winner:
Clearspring
Runner-up: Sprout
Blog Plugins
Winner: ShareThis
Runner-up: AddThis
Social News
Social Networking Applications
Winner: Ping.fm
Runner-up: Twitterfeed
Social Bookmarking
Winner: Delicious
Runner-up: StumbleUpon
Search & Social Search
Winner: Google
Runner-up: Scour
Sports & Fitness
Winner: Gyminee
Runner-up: Oneseason
Photo Sharing
Winner: Flickr
Runner-up: Picasa
Video Sharing
Winner: YouTube
Runner-up: Vimeo
Start Pages
Winner: iGoogle
Runner-up: Netvibes
Places & Events
Winner: Doodle
Runner-up: Eventbrite
Travel
Winner: TripIt
Runner-up: GeckoGo
Music
Winner: Last.fm
Runner-up: Pandora
Social Shopping
Winner: Wishpot
Runner-up(s): Tigerbow/Pikaba (tie)
Fashion
Winner: Coolspotters
Runner-up: Gift Girl
Celebrity & Gossip
Winner: Perez Hilton
Runner-up: Popvine
Mobile Applications
Winner: Evernote
Runner-up: Qik
Wiki
Winner: Wikipedia
Runner-up: PBWiki
Politics
Winner: Huffington Post
Runner-up: CreateDebate
How-to
Winner: eHow
Runner-up: Howcast
Environmental
Winner: ThinkGreen
Runner-up: SocialVibe
Non-Profit Causes
Winner: SocialVibe
Runner-up: Kiva
Online Games
Winner: Playfish
Runner-up: Kongregate
Niche Social Networks
Metamorphosis from Glenn Marshall on Vimeo.
