social bookmarking sites list for best seo

1 | twitter
19 - eBizMBA Rank | 89,800,000 - Estimated Unique Monthly Visitors | 26 - Compete Rank | 19 - Quantcast Rank | 11 - Alexa Rank.
2 | digg
102 - eBizMBA Rank | 27,500,000 - Estimated Unique Monthly Visitors |134 - Compete Rank | 61 - Quantcast Rank | 112 - Alexa Rank.
3 | Yahoo! Buzz
310 - eBizMBA Rank | 16,000,000 - Estimated Unique Monthly Visitors |220 - Compete Rank | *400* - Quantcast Rank | N/A - Alexa Rank.
4 | reddit
392 - eBizMBA Rank | 15,500,000 - Estimated Unique Monthly Visitors |857 - Compete Rank | 199 - Quantcast Rank | 119 - Alexa Rank.
5 | StumbleUpon
423 - eBizMBA Rank | 15,000,000 - Estimated Unique Monthly Visitors |538 - Compete Rank | 551 - Quantcast Rank | 180 - Alexa Rank.
6 | delicious
869 - eBizMBA Rank | 5,500,000 - Estimated Unique Monthly Visitors |1,396 - Compete Rank | *870* - Quantcast Rank | 342 - Alexa Rank.
7 | tweetmeme
873 - eBizMBA Rank | 5,450,000 - Estimated Unique Monthly Visitors |1,317 - Compete Rank | 877 - Quantcast Rank | 426 - Alexa Rank.
8 | mixx
1,512 - eBizMBA Rank | 2,600,000 - Estimated Unique Monthly Visitors |2,833 - Compete Rank | *940* - Quantcast Rank | 764 - Alexa Rank.
Most Popular Social Bookmarking Websites | Updated 1/3/2011 | eBizMBA
9 | FARK
1,728 - eBizMBA Rank | 1,850,000 - Estimated Unique Monthly Visitors |2,045 - Compete Rank | 1,019 - Quantcast Rank | 2,120 - Alexa Rank.
10 | Slashdot
1,805 - eBizMBA Rank | 1,700,000 - Estimated Unique Monthly Visitors |2,335 - Compete Rank | *1,825* - Quantcast Rank | 1,254 - Alexa Rank.
11 | friendfeed
2,380 - eBizMBA Rank | 1,500,000 - Estimated Unique Monthly Visitors |4,053 - Compete Rank | *2,400* - Quantcast Rank | 686 - Alexa Rank.
12 | clipmarks
2,541 - eBizMBA Rank | 1,400,000 - Estimated Unique Monthly Visitors |*2,800* - Compete Rank | 1,679 - Quantcast Rank | 3,145 - Alexa Rank.
13 | newsvine
2,544 - eBizMBA Rank | 1,390,000 - Estimated Unique Monthly Visitors |2,224 - Compete Rank | 2,020 - Quantcast Rank | 3,388 - Alexa Rank.
14 | diigo
3,078 - eBizMBA Rank | 1,200,000 - Estimated Unique Monthly Visitors |4,765 - Compete Rank | *2,700* - Quantcast Rank | 1,769 - Alexa Rank.
15 | Propeller
4,377 - eBizMBA Rank | 1,000,000 - Estimated Unique Monthly Visitors |7,170 - Compete Rank | *4,250* - Quantcast Rank | 1,712 - Alexa Rank.