---- Reputable site wants to purchase ad space on my site.
bluemonster - 3:26 pm on Mar 25, 2013 (gmt 0)
I guess you should get an idea what other blogs in your niche are charging with same pvs. you can refer buysellads to get an idea. else if you have blog in your niche with same stats, email them with a fake id (as a company that wants to buy ad space) you will get an idea on the price they quopte.