I have checked out a lot of forum posting sites, most average about the same, 10-15 cents per post. But one that varies more is postingdirect.com They can be as minimal as .04 per post, but also have some for .10, and as you do more, and build a better "reputation" number, you can earn more. So even if the minimum listed is .10, you could actually make double that or more for the same assignment if you have a good reputation! It's also a pretty easy one to access, and you can pick your jobs. I have found it a good place to start and learn from.