We need messages posted on specific forums about our product

We are a new digital business with a product that should appeal to a number of trade businesses but we need to get ourselves known. We figured one great way to do so was to have posts created on specific trade forums where we can reach large amounts of readers quickly - and then have these links maintained or refreshed. There are about 50 forums globally that we want to appear on and therefore need someone who can post our messages for us. We have written the copy/text and are looking for someone to post and then maintain our position within the forums so that our message can be heard/seen by as many as possible.