In one particular research thread, I wanted to post a link to a thread on another forum where the other person could find out more detail. Specifically, it's a historical question and the link points to a history forum. I don't want to be seen to be promoting another forum, and in particular, I am a moderator on that forum (we actually have some members in common, which I didn't know about until I joined here). So I want to ask if that's acceptable? There's probably no more need for the link in the current discussion, but I want to check just for future reference. Don't want to break any rules.