Below is the best top web master forum that can help and guide you to make money online. Its have a lot of information inside shared by a lot of good and professional web master from all around the world.
If you have any problem or not sure about something in internet marketing or online business, then you can just write the questions and ask in the forum. Many people will hold your hand to help you. 
Actually there are still lot quality forum outside there but below are among the popular webmaster forum.
So here we go.. but my suggestion is to stick to 2-3 forums only to get you focus on that forum..
Digitalpoint.com —- PR :6 — Signature link : Without Nofollow
sitepoint.com —- PR : 7 — Signature link : Without Nofollow
webmasterworld.com —- PR : 8 — Signature link : No signatures
warriorforum.com —- PR : 5 — Signature link : Without Nofollow
V7N.com —- PR : 6 — Signature link : Without Nofollow
Webhostingtalk.com —- PR : 6 — Signature link : Without Nofollow
namepros.com —- PR : 5 —- Signature link : Without Nofollow
dnforum.com —- PR : 5 —- Signature link : Without Nofollow
webmaster-talk.com —- PR : 6 — Signature link : Without Nofollow
kirupa.com/forum/ —- PR : 7 — Signature link : Without Nofollow
EarnersForum.com —- PR : 5 — Signature link : Without Nofollow
You can take advantage to this forum with their high PR and signature link without nofollow. Easily you can put your site at the signature at the forum and this will help your site to get been indexed faster and at the same time get clicks from others forumer. Anyway please make sure you contribute to the forum first, then definately people will respect you on your expertise.
Just my 2 cents..
