All but the general forums, and the intro forums will be counted for points.
The only ones I've had much success in are
Commission Junction - A Global Leader in Affiliate Marketing, Online Advertising and Search Engine Marketing Digital Products Retailer: Affiliate Program & Sell Online - ClickBank
I've signed up with shareasale, and I have an old account with linkworth and linkshare
I'm still pretty green to the whole thing, but what I like about CJ is that they have banners for you, so if you're posting a review of a product, say for example.. Adobe Photoshop, you can place a banner, or even just get the direct link and place it anywhere in your review.
Promote those post with a few links and go on to the next one.. Keep building the content, and your one sale a month will start to turn into one a week, and hopefully one a day.
What I like about clickbank, is that most products have a squeeze page that you can pull some content from.
Anyways.. my 2cents