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.
