Press releases, announcements are crawled quickly by Search Engines and give a high traffic quite early as well. When ever you make a major change to your site or include a new feature etc. do make a press release for it and submit it to various press release (PR) sites. Find below the list of some good PR sites.
1. www.exactrelease.com
2. www.pressbox.co.uk
3. www.pressexposure.com
4. http://www.free-press-release.com
5. http://www.nosyjoe.com/submit.php
6. http://www.prfocus.com/
7. www.myprgenie.com
8. www.prurgent.com
9. http://www.theopenpress.com/
10. http://www.free-press-release-center.info/
11. http://www.freepressindex.com
12. http://www.prwindow.com
13. http://www.pralley.com
14. http://www.prmarker.com
15. http://www.way2pressrelease.com
16. http://www.pressreleaseset.com
17. http://www.pressreleaseunit.com/member/selectcategory.php
18. http://www.clipreleases.com
19. http://www.pressrelize.com
20. http://free-news-release.com/
21. http://press.abc-directory.com/
22. http://www.seenation.com/
23. http://www.upvery.com/
24. www.betanews.com
25. http://www.ecommwire.com/
26. http://www.clickpress.com
27. www.openpr.com
28. www.theopenpress.com
29. http://www.sanepr.com
30. http://www.ukprwire.com
31. http://www.itbsoftware.com
32. http://www.pressmethod.com/
33. http://www.1888pressrelease.com/
34. http://www.pressabout.com/
35. http://pr-gb.com/
36. http://www.afly.com/
37. http://www.aspendailynews.com/
38. http://www.businessservicesuk.com/
39. http://www.enewswire.co.uk/
40. http://www.localpressreleaser.com/
41. http://www.michiganpr.net/
42. http://www.ourmidland.com/
43. http://www.onlineprnews.com/
44. http://www.postafreepressrelease.com/
45. http://www.pravenue.com/
46. http://www.ready-buzz.com/
47. http://www.your-story.org/
48. http://www.mediasyndicate.com/
49. http://news.thomasnet.com/index.html
50. http://www.nanotech-now.com/
51. http://www.i-newswire.com/
52. http://www.release-news.com/
53. http://www.elecdir.com/
54. http://www.smallbiztrends.com/
Thanks for the list