CPM / direct advertising questions.
I have a fairly well targeted website with low bounce rate in the automotive niche. Gets around 150,000 impressions a month.
At the moment it offers a product for free based on CPA.
I want to monetize further and I'm thinking some direct advertising rather than PPC would be better for my site. So I have a few questions I was hoping you experienced heads could help someone new in the game of this area of advertising could help with.
1) what is general is the usual CPM rate one can expect for displaying ads on their site?
2) what are some good as networks I can sell advertising space on? Rather than cpm I was also considering a fixed fee for having their advert on my site for a month etc.
3) CPM advertising seems strange to me. Couldn't someone just buy a whole lot of bit traffic and make more from the cpm rate? How do they monitor this? I don't plan on doing this of. Course, it's just a thought that popped into my head.
Thanks all in advance.