One of the big advantages of promoting your forum link (via signature line/ad, etc) on a related forum is how the audience of that forum are already interested in the subject and most likely to click through on your link to see what you have to offer.
But, there are some disadvantages to promoting on a related niche forum. For one, some forums don't allow competitors to advertise links to similar sites, even via signature line. That limits your advertising options.
For another, you could easily promote via an unrelated niche forum so long as your responses were relevant for the forum being posted in. There's a good chance that others would like what you have to say or just want to hang out with you more and check out your forum signature link anyway.
But, there are some disadvantages to promoting on a related niche forum. For one, some forums don't allow competitors to advertise links to similar sites, even via signature line. That limits your advertising options.
For another, you could easily promote via an unrelated niche forum so long as your responses were relevant for the forum being posted in. There's a good chance that others would like what you have to say or just want to hang out with you more and check out your forum signature link anyway.







