I recommend you to manually register on every forum and post some content and also create a nice signature.
If you are serious about making your internet marketing effort a bit hit, consider joining online forums. It is an effective option to generate traffics.
There are 1000s of them in every niche. Despite being the easiest of different aspects for online marketing, forum promotion is often ignored.
Use your signature but only later: Many forums will not allow you to post until you do not have a specified number of valuable posting with high reputation. Every online forum is moderated and spammers can easily create profiles.
In some instances, the moderators may consider your signature a spam and as a result, your protocol address will be blacklisted forever.