CPM ads [cost per thousand impressions (M - roman letter for 1000)] you can use and earn a good revenue if your sites get more impressions. So I thought to share some info about the best CPM network and few others. The best one is tribal fusion,
-They allow ads on blogs,web sites and on forums
-Entry requirement is 2000 unique visitors a day, 60 000 UV a month
-provide different kinda ads formats including video ads
-They mostly pay about $1 + for 1000 imps
Here are some other CPM ad networks, but they don't pay as much as Tribal fusion.
- Casale media
- ValueMedia
- Burstmedia
- CPX
- interclick
If your sites have 5000 + impressions a day, try them. Except Tribal fusion, get into other CPM ad networks I mentioned above is not difficult. Only Tribal fusion has high entry requirements. But however if you get accepted into TF, they will pay you handsomely.