There are quite alot of forums and even more mushrooming but if i am to say which are the top ranking forums that are reliable i would go for beermoney forum,bizdsustry,tendri,forumcoin,mylot and the new baby in town that has strived to take a command in the forum industry RIF.The people behind these forums have really put in a lot of work to ensure that they build and invest in the forums so that the memebrs interests are super top priority.If i had a way to be active on all of them right now i would do it but sadly am on a little break and concentrating on something of my own that i am trying to build.