- MohawksRock - The Mohawk Hairstyle Social Network
- The Tall Street Journal - Social Network for Tall People
- Twitter - Microblogging Platform
- Delicious - Social Bookmarking
- MySpace
- ColdFusionCommunity - The Cold Fusion Social Network
- TuDiabetes - The Diabetes Social Network
- Last.FM - Music Sharing Network
- Imeem - Music/Video Sharing Network
- Digg - News Social Network
- Pownce
- Mahalo - Human Powered Search
- Squidoo
- Magnolia - Social Bookmarking
- Hi5
- Flickr - Photo Sharing
- Zooomr - Photo Sharing
- Riya - Facial Recognition
- Blogger
- LiveJournal
- CyWorld
- Kaneva
- YouTube - Video Sharing
- Orkut
- Fotolog
- Friendster
- Motoropia - Vehicle Social Network
- SkyBlog