The 50 most popular betas from Google ranked by the number of bookmarks at del.icio.us.

updated: September 21 2011

  1. google-maps (21296 overall)
  2. gmail (17900 overall)
  3. google-trends (13201 overall)
  4. google-web-toolkit (10901 overall)
  5. google-reader (10811 overall)
  6. blogger (9903 overall)
  7. google-news (9886 overall)
  8. google-font-directory (9560 overall)
  9. google-scholar (9539 overall)
  10. google-book-search (9261 overall)
  11. google-docs (9152 overall)
  12. google-code-search (7998 overall)
  13. google-video (7117 overall)
  14. google-calendar (6494 overall)
  15. browser-size (5949 overall)
  16. google-blog-search (5837 overall)
  17. freebase (5604 overall)
  18. google-insights-for-search (5314 overall)
  19. appinventor (5199 overall)
  20. grandcentral (5118 overall)
  21. google-app-engine (4818 overall)
  22. google-fast-flip (4719 overall)
  23. goo.gl (4667 overall)
  24. google-translate (4481 overall)
  25. picasa-web-albums (4461 overall)
  26. aardvark (3710 overall)
  27. google-custom-search-engine (3703 overall)
  28. google-wave (3476 overall)
  29. google-patent-search (3429 overall)
  30. google-image-labeler (3401 overall)
  31. google-squared (3327 overall)
  32. google-news-timeline (3198 overall)
  33. google-groups (3039 overall)
  34. google-public-data-explorer (2935 overall)
  35. google-alerts (2897 overall)
  36. google-doctype (2762 overall)
  37. google-page-speed (2624 overall)
  38. orkut (2592 overall)
  39. google-notebook (2580 overall)
  40. google-reader (2576 overall)
  41. measurement-lab (2540 overall)
  42. measure-map (2455 overall)
  43. google-page-creator (2364 overall)
  44. google-image-squirrel (2289 overall)
  45. google-cow (2255 overall)
  46. google-body-browser (2255 overall)
  47. google-similar-images (2144 overall)
  48. social-graph-api (2107 overall)
  49. google-friendconnect (2088 overall)
  50. google-chrome (2014 overall)

Bonus list: The 50 most popular properties (in and out of beta) from Google ranked by the number of bookmarks at del.icio.us. Currently more than 350 sites are tracked, including the 250 betas and pre-betas from Google listed at the MoMB.

  1. youtube (92893 overall)
  2. google (56544 overall)
  3. google-maps (21296 overall)
  4. gmail (17900 overall)
  5. google-analytics (14656 overall)
  6. google-ig (13651 overall)
  7. google-trends (13201 overall)
  8. life-photo-archive (11849 overall)
  9. google-web-toolkit (10901 overall)
  10. google-reader (10811 overall)
  11. blogger (9903 overall)
  12. google-news (9886 overall)
  13. google-font-directory (9560 overall)
  14. google-scholar (9539 overall)
  15. google-book-search (9261 overall)
  16. google-docs (9152 overall)
  17. google-code (8548 overall)
  18. google-chart-api (8360 overall)
  19. google-code-search (7998 overall)
  20. html5rocks (7818 overall)
  21. googleartproject (7706 overall)
  22. google-earth (7459 overall)
  23. google-video (7117 overall)
  24. google-code-university (6607 overall)
  25. google-calendar (6494 overall)
  26. browser-size (5949 overall)
  27. google-blog-search (5837 overall)
  28. freebase (5604 overall)
  29. google-insights-for-search (5314 overall)
  30. google-labs (5247 overall)
  31. appinventor (5199 overall)
  32. grandcentral (5118 overall)
  33. google-app-engine (4818 overall)
  34. google-fast-flip (4719 overall)
  35. goo.gl (4667 overall)
  36. opensocial (4585 overall)
  37. google-translate (4481 overall)
  38. picasa-web-albums (4461 overall)
  39. android (4441 overall)
  40. searchmash (4055 overall)
  41. aardvark (3710 overall)
  42. google-custom-search-engine (3703 overall)
  43. youtube-edu (3559 overall)
  44. google-wave (3476 overall)
  45. google-patent-search (3429 overall)
  46. google-image-labeler (3401 overall)
  47. google-de (3346 overall)
  48. google-squared (3327 overall)
  49. google-news-timeline (3198 overall)
  50. google-groups (3039 overall)