
By Ilyn Reyes
There’s a lot of Social Bookmarking Sites, and here are the top ten sites:
Digg.com – the most popular and notable of the social bookmarking sites. Quantcast estimates that that Digg has about 25 million unique visitors a month.
Propeller.com -- (formerly Netscape) is comfortable the second biggest social bookmarking site behind Digg with over 5.8 million monthly uniques, of which 3.6 million (62%) are in the U.S.
StumbleUpon - Stumbleupon.com reports over 4.5 million members and Quantcast classifies it as a top 5,000 site that has about 1.5 million unique visitors a month from the U.S.
Reddit.com - is becoming a very popular social bookmarking site with about 1.2 million unique visitors in the U.S., making it slightly larger than Del.icio.us.
Del.icio.us - is the oldest social bookmarking site and Quantcast classifies it as a top 5,000 site that gets about 1.1 million unique visitors a month from the U.S.
Newsvine.com - is a top 10,000 site that reaches over 362K U.S. monthly uniques.
Fark.com - is a much more trafficked site than people expect. With 1,972,698 monthly unique visitors in the U.S., it is bigger than StumbleUpon, Del.icio.us and Reddit.
Blinklist.com - is a top 10,000 site that reaches over 353K U.S. monthly uniques.
Clipmarks.com - Clipmarks reaches over 205K U.S. monthly uniques.
Shoutwire.com - This site reaches approximately 70,742 U.S. monthly uniques. The site appeals to a more male (60%), younger audience (38% are under 24).

