Hi, I am offering advertisement space 125x125, 300x250 and 728x90 on my multi-users site, ad revenue sharing, http://www.Best-Reviewer.com The site is updated daily and currently has several thousands posts and thousands of members who are in the online earnings business. If you have websites about making money online, seo services, and other similar topics, this audience is perfect for your needs. You can check out the advertising rates and traffic stats here http://www.best-reviewer.com/advertize-best-reviewer.htm PM me or reply here if you have any question. Thanks