Via TechCrunch, a list of the top 20 social media sites in 2008:
Top Social Media Sites
(ranked by unique worldwide visitors November, 2008; comScore)
- Blogger (222 million)
- Facebook (200 million)
- MySpace (126 million)
- Wordpress (114 million)
- Windows Live Spaces (87 million)
- Yahoo Geocities (69 million)
- Flickr (64 million)
- hi5 (58 million)
- Orkut (46 million)
- Six Apart (46 million)
- Baidu Space (40 million)
- Friendster (31 million)
- 56.com (29 million)
- Webs.com (24 million)
- Bebo (24 million)
- Scribd (23 million)
- Lycos Tripod (23 million)
- Tagged (22 million)
- imeem (22 million)
- Netlog (21 million)
