At the moment all spots are available.
- Leader board
- Post content
- Top right sidebar
All prices are in US Dollars per 1000 content page impressions (not visits) as counted by Google Analytics. As an example if the site gets 10, 000 impressions during a month period then the leader board or post/article content slot would run you ( $3 / 1000 * 10,000) $30, the top sidebar slot would run $25 and the sidebar slots would run $15.
If you are interested, send an email to my gmail account cyberlord8 and we can work out the details.