Hey guys! I have a sports website which gets over 1000 of visitors every day. 70% of them are from the USA and ~10% are from the UK, Canada, Australia and Germany combined. Others are international, mostly from the Philippines. I want to sell advertising space on it, but I am not sure how much I should charge for it monthly or per 1000 impressions. Basically, I am interested in 720x90 footer ad price, 300x250 above the fold ad, 300x250 below the fold ad, 160x600 sidebar - below the fold ad etc. How much should I charge for them and how - monthly, CPM or some other way? Thanks!