I have a Tech website: www.ILoveFreeSoftware.com. It is a PR4 website, and has Alexa Rank of 70K. This website gets 45,000 UV and 75,000 Page views per month. This has 125*125 ad blocks on Right Sidebar. These ad blocks are visible on all the pages of website, including home page. There is just one ad block remaining. Price is $20 per month, and $50 for 3 months. PM me if you are interested.