Here are the 15 Largest Social Bookmarking Sites ranked simply by Alexa Rank.Other things that i taken into account were Inbound Links, Google Page Rank and U.S. traffic data from Compete and Quantcast. Although no traffic metrics are completely accurate so you can call them my favorites if you like.
All data collected within last 7 seven days (from 20th july) and Alexa Ranking has been checked today.1. digg.com 117,796,083 - Inbound Links
22,541,770 - Compete Monthly Visitors
7,200,000 - Quantcast Monthly Visitors
97 - Alexa Ranking
8 - Google Page Rank
2. Technorati.com75,029,441 - Inbound Links
2,877,385 - Compete Monthly Visitors
1,600,000 - Quantcast Monthly Visitors
205 - Alexa Ranking
8 - Google Page Rank
3. del.icio.us172,291,472 - Inbound Links
1,032,835 - Compete Monthly Visitors
1,100,000 - Quantcast Monthly Visitors
240 - Alexa Ranking
8 - Google Page Rank
4. StumbleUpon.com16,953,085 - Inbound Links
731,424 - Compete Monthly Visitors
645,880 - Quantcast Monthly Visitors
294 - Alexa Ranking
8 - Google Page Rank
5. MyBlogLog.com1,711,429 - Inbound Links
1,795,517 - Compete Monthly Visitors
78,295 - Quantcast Monthly Visitors
416 - Alexa Ranking
7 - Google Page Rank
6. Slashdot.org11,418,847 - Inbound Links
276,433 - Compete Monthly Visitors
252,696 - Quantcast Monthly Visitors
560 - Alexa Ranking
9 - Google Page Rank
7. Netscape.com22,728,070 - Inbound Links
4,870,107 - Compete Monthly Visitors
8,079,125 - Quantcast Monthly Visitors
564 - Alexa Ranking
9 - Google Page Rank
8. Bloglines.com55,357,021 - Inbound Links
170,518 - Compete Monthly Visitors
92,760 - Quantcast Monthly Visitors
833 - Alexa Ranking
9 - Google Page Rank
9. reddit.com49,048,002 - Inbound Links
976,882 - Compete Monthly Visitors
266,266 - Quantcast Monthly Visitors
842 - Alexa Ranking
7 - Google Page Rank
10. Fark.com11,534,478 - Inbound Links
217,545 - Compete Monthly Visitors
1,797,393 - Quantcast Monthly Visitors
1,879 - Alexa Ranking
7 - Google Page Rank: 7
11. Furl.net50,132,698 - Inbound Links
88,892 - Compete Monthly Visitors
65,539 - Quantcast Monthly Visitors
4,071 - Alexa Ranking
8 - Google Page Rank
12. blinklist.com23,703,633 - Inbound Links
136,654 - Compete Monthly Visitors
158,548 - Quantcast Monthly Visitors
4,582 - Alexa Ranking
6 - Page Rank
13. clipmarks.com179,742 - Inbound Links
124,970 - Compete Monthly Visitors
108,688 - Quantcast Monthly Visitors
6,509 - Alexa Ranking
6 - Google Page Rank
14. kaboodle.com99,788 - Inbound Links
1,611,382 - Compete Monthly Visitors
691,706 - Quantcast Monthly Visitors
9,529 - Alexa Ranking
6 - Google Page Rank
15. netvouz.com8,521,836 - Inbound Links
87,746 - Compete Monthly Visitors
88,705 - Quantcast Monthly Visitors
14,548 - Alexa Ranking
6 - Google Page Rank
Labels: Misc