I am offering 4 125x125 banner space and a 468x60 header on my PR2 tech niche site. The blog has 240+ pages indexed with Google. It has an alexa of 320000. As per Google webmasters tool, the number of internal links is 4500+. According to yahoo siteexplorer it has 1000+ inbound links. Each banner will cost you 15$ for a month, price can be negotiated if the banner is purchased for a period of 3 or more months. P.S :- Serious buyers only.