The 25 most popular sites from 2006 ranked by the number of bookmarks at del.icio.us.

See the Class of 2004, the Class of 2005, the Class of 2007, the Class of 2008, the Class of 2009, the Class of 2010, the Class of 2011 and the Hall of Fame

  1. zamzar (46302 overall)
  2. slideshare (39313 overall)
  3. twitter (36609 overall)
  4. kuler (34838 overall)
  5. ajaxload (31290 overall)
  6. keepvid (29719 overall)
  7. picnik (27144 overall)
  8. popurls (24004 overall)
  9. vixy (20153 overall)
  10. blurb (19595 overall)
  11. bubbl.us (19522 overall)
  12. musicovery (18944 overall)
  13. retailmenot (18916 overall)
  14. mint (17120 overall)
  15. wufoo (16746 overall)
  16. zotero (15981 overall)
  17. add-this (15112 overall)
  18. osalt (15026 overall)
  19. mediafire (13704 overall)
  20. yahoo-yui (13273 overall)
  21. google-trends (13201 overall)
  22. visuwords (12849 overall)
  23. dimdim (12626 overall)
  24. weebly (12357 overall)
  25. widgetbox (12009 overall)