Anyway, it looks like Bitcointalk is still a great place to run ad campaign. Based on this discussion currently there's 32 active signature campaign paying bitcoins (if I'm not mistaken). I can't imagine there are many online gambling casino companies doing this sort of thing. Hopefully, this will last for a long period of time just like many others.
There are 28 active ones as per the Overview thread.
Are you guys aware of any other forum in the world that would have similar campaigns?
It's pretty crazy to think that there are people from poor countries making their living just by posting on bitcointalk. The highest-paid campaign currently pays $6/post, which converts to around $910/month. Not enough to survive in "the West" but there are plenty of countries you could live a comfy life with that kind of money.