In your users cp on a forum you can edit your signature (each site has it’s own policies as to how many links you may have).

The code to create a signature is as follows:

[URL="http://www.Your URL .com"]Your Site Name or keyword[/URL]

List Of 120 Forums That Allows DoFollow Signatures

1. Warrior Forum By far the most helpful and responsive internet marketing forum that I have visted.There are people who are always ready to answer you questions and attend to your need.
2. 5Star Affiliate Forum Affiliate Marketing Forum
3. Ableton Audio and musical forums
4. Abestweb Affiliate Marketing forum for both newbie and experienced affiliates to learn and earn more by sharing information about networks, merchants and best practices
5. Abundance Free advertising forum
6. Addicsports - Baseball, basketball, and sports forum.
7. Affiliateseeking.com webmaster and affiliate forums.
8. Acorn Domains A growing community of UK Domain Name owners, buyers and sellers.
9. Admin Zone Forums Resources for community administrator and webmaster.
10. Sitepoint Foums Discuss deeply about SEO & SEM, your signature will be dofollow after you reach a certain amount of post.
11. Affiliates4U UKs leading affiliate and marketing forums
12. Allcoolforums - Online Free discussion board
13. AMD Forums official AMD processors support forum
14. Baseballtalkpro baseball forums.
15. Blogger Forum Focused on blogging community, monetizing and promotion of blogs.
16. Blogger Talk Forums for bloggers.
17. Business Forum business-related forums.
18. BZ Image SEO Forum Web Design Help Webmaster Forum Web Hosting Talk
19. Capital Theory online moneymaking forum.
20. Clickbank Success A dofollow forum dedicated to clickbank users.
21. Clicks Forum Internet marketing for business.
22. Cnet Forums Software and technical forums.
23. Code4gold Free Webmaster Resources, Webmaster Tools and Search Engine Optimization
24. Comic Book Resources Discussion about comic books and resources
25. David Castle UK SEO & Internet Marketing Forums.
26. Deviantart Join the largest art community in the world!
27. DDBoard Domain name dofollow discussion board.
28. Digitalppoint Internet marketing and search engine forums
29. DirectoryJunction New but cool webmasters forum.
30. Discuss Names Another dofollow domain names discussion forum.
31. DN Forum Domain name sales, domain name appraisals, domain name discussions
32. DN Lodge Domain name and webmasters forums. Dofollow signature advertising.
33. DN Scoop Domain and webdevelopers forums.
34. Domain Name Forums Domain name discussion, appraisals, buys and sell, and domain marketplace.
35. Dreamteam Money Forum Moneymaking forums. One of the hottest moneymaking forums offering dofollow forum signature.
36. Ecauldron Pagan and religious forum
37. Egadforum general community forum.
38. Ewealth.com Internet Marketing and webmaster forum.
39. Filesharingtalk file sharing forum.
40. Free Ad Forum Dofollow free advertising forum
41. Free Advertising Forum Unlimited ad posting. Content and signatures both dofollow.
42. Freewebspace Free webhosting guides and forums.
43. Fogengine Web directories forum
44. Geek Village Large moneymaking dofollow forum.
45. Gento Forum technical and programming forum
46. Golden Talk High Yield Investment Programs forums.
47. Googlecommunity Everything about google
48. GPT Boycott Forums Get-paid-to forums and ratings.
49. Hablarmierda a Spanish dofollow forum
50. Harmony Central Musicians Community Forums
51. Hit Tail Real traffic, real time, real result.
52. Hot4s Online Forum Australias cars and motoring forums
53. Hotsurfs Focusing on making money out of autosurfing.
54. HTML Forums Free webmaster forums and help
55. HYIPs Talk High Yiled Investment Programs forums.
56. IDN Forums International domain names forums, sales, appraisals, and general discussion.
57. Intel Forums Intel software developers community forums.
58. Im4newbies Affiliate marketing forum guide for new affiliates.
59. Internet Marketing for Business Internet Marketing and SEO Webmaster Forums
60. IQ 69 Mainstream Webmasters Forum
61. Iwebtool Offers preview of site in signatures. Webmaster tools forum
62. Lex224 - Computer and gaming forum.
63. Live Journal creating a community forum.
64. Microsoft Forum Official Microsoft support forum.
65. Money Maker Group Internet marketing and webmaster forum focusing on HYIPs.
66. Movie Lists - Movies and show business.
67. Moneyfanclub A dofollow online moneymaking forum focusing on HYIPs and autosurfs.
68. Mygamebuilder gaming forum
69. MySQL Forum database and programming forums
70. Namepros.com An active community of domain name owners, investors, buyers, and sellers of all kinds
71. Online Books Club Book & Reading Discussion
72. Oracle Forums Support forum for Oracle
73. Paganforum pagan and religion forum
74. Payment Processing Online payment and credit card processing forums. Ecommerce forum.
75. PhpBB Forum official support community forum for PhpBB users.
76. PokerBRB Forum Anything about Poker
77. Revenue Source - Affiliate Marketing and SEO forums
78. Search Engine Forums Discussion Forum of SEO and Webmaster Related Topics
79. Search Engine Roundtabe Search Engine Forums
80. SEO Chat Programming and development forum online. Folders for all programming languages.
81. SEOForum Australian SEO Forum
82. SEO.com Forum Search Engine Optimization discussion.
83. SEO Guy Search Engine Optimization Forum. Dofollow signature.
84. Sidetalks general forum
85. Simplemachines SMF official support forum.
86. Siteowners A dofollow webmasters forums
87. Sitepoint Webmaster and programming forums.
88. Sitesell Forum webmaster community forum
89. Small Business Forum A dofollow business forum for small entrepreneurs and online moneymakers.
90. Startups Business start-up and innovation forums
91. Static-Subs anime forums
92. Submitexpress Search engine forum
93. Talkfreelance.com Freelance webmasters, webdesign, and seo community.
94. Tattoo tattoo forums.
95. Textpattern textpattern support forums
96. The Free Ad Forum Largest free advertising forum now has a dofollow signature.
97. The Green Nation Another dofollow HYIP forum.
98. The V7 Webmaster Forums
99. TheHYIPforum Another dofollow forum owned by Talkgold. Best if you are promoting a HYIP site.
100. TriPHP Webmaster Forums TriPHP Webmaster Forums is a friendly Community for Webmasters of all experience levels
101. Ubuntu Technical Forum technical and PC-related forums.
102. W3SEO SEO forums
103. Webdegity - webmaster forum
104. Web Design Forums The place for web designers. A dofollow forum.
105. Web Developer Generally about programming and scripting websites with sections on domain names, and other money related topics.
106. Webicy Webmaster community forums.
107. Web Life A HYIP forum sowned by Talkgold.
108. Webhosting Canada Industry Discussion, Webmaster Forum, Web Host Reviews and Deals forums.
109. Webhosting Talk Geared towards hosting resellers but has some relevant sections on making money selling hosting and running a website
110. Webmaster Forums Online News and Discussion Forums for Webmasters about SEO, Internet Marketing and Advertising, Website Design and Development, Web Hosting and General Topics.
111. Webmasters Help Webmaster and seo forum. Lionks on posts are nofollow but offer dofollow signatures.
112. Webmaster-talk Programming, webdesign, seo, and webmaster forums
113. Webproworld The worlds forum for ebusiness professionals.
114. Webtalkforums Webmaster Forum is a revenue sharing webmaster discussion forum
115. Windows Forum windows community forums.
116. Winamp Official winamp forum.
117. Work at Home Moms Moneymaking forum for Moms.
118. Work-at-Home Moms Internet marketing message boards for moms.
119. World of Warcraft online gaming forum
120. Xandros website design, themes, and lay out forums.