The best to earn from making a forum

Well, if you make a forum, it can take up some years before it starts earning an income. What you need first, however, are some users and members of your forum. Once you get that running well, implement some ad company ads like adsense and kontera or textlink and if you have guests, they might accidentally click on the ads or something like that.:)

Of course, as I said it can take up lots of time. A blog is much more easier, but requires more commitment.