02 Feb 15 3:10 am
At the same time don't be one of those people who goes into a forum and posts some useless comment ("Good comment, I totally agree") just to get your footer links in front of faces.
Gah. I freaking hate that, and I will ban people from this forum if I smell that in their forum posts.
Aside from footer links and contributing something useful to the discussion, you might also want to look for a forum that isn't quite so uppity about this. Forums usually only get all CAPS LOCKY like that when they've been hammered by spammers in the past. So look for forums that aren't such immediate targets.
I find it much easier to share my site in forums if I have something really nice to share with people. I create content that I KNOW will make people go "Oh wow! That's so awesome!"
One nice trick is to hang out in forums for a bit and see what kind of stuff people really want, but aren't able to find. It could be a simple explanation of a complicated concept, it could be some kind of tool, it could be a collection of links to useful resources, etc.
Then create content on your website that addresses this need. You might need to put a bit of effort into creating it... not just a twenty minute article or something. Also forget about whether there's a keyword for it, or anything like that. Your goal is to get people saying WOW and sharing your site with each other.
Then you can go into the forum (one that isn't all CAPSLOCKY in their aversion to links) and say something like "Hey guys, I saw someone asking this the other day so I put together this resource for you. I hope you like it. If there's anything you think is missing please let me know."
I've done this before, expecting to be shot down, and I've been really surprised how appreciative people have been. I even did it on Reddit -- that most unforgiving of public forums -- and all I got was comments like "wow, that's really useful, thanks!"
Someone also added me to their list of resources, and every time a newbie comes into the forum asking newbie questions, that person comes along and shares my site. If you make something good, it will keep on giving!