I have seen this on many Webmaster/Administration forums. The idea is to post a certain amount of content on ones forum and in return, receive a free month of hosting for your posting. How do you feel about this type of exchange? Would you partake in this exchange? I honestly like Paid Hosting better, there could be some times where you have issues or arguments with the person you are exchanging with, or you forget to post one month, etc. With Paid Hosting, it takes 5 seconds to pay for one month and you have to do no additional work.