You see the space under your post, that is "signature space" companys pay to use your signature space, some are fixed rates so they could ask 25 posts every 2 weeks and be paid at the rate of your membership level. Some are pay per post and as it sounds they pay you per constructive post you make on the forum. Most of the time you will be paid weekly for pay per post and bi weekly or monthly for a fixed rate. Hope that helps.