I am running a gaming website right now, drawing in about 30k-45k pageviews monthly. I have noticed my traffic steadily increasing, and I plan to be up to 100k pageviews within a month or two. My question is, what are some good rates for CPM advertising? I have realized I can probably make more money through CPM than PPC, so I'm wondering what a good rate would be ($1/1000 visits, $1.50)?