Many bloggers and webmasters are familiar with AdSense and its potential to generate excellent revenue for blogs and web sites. Unfortunately, many bloggers and webmasters focus too much on AdSense and forget that there are other types of advertising — i.e., CPM advertising — that could help your blog make more money without affecting the existing AdSense income. After all, there’s only so much AdSense optimization that could be done.

Photo by RichSeattle via Flickr
Although AdSense is a good place to start because there’s no traffic or page views requirement, it shouldn’t be the only blog monetization solution. Once your blog or web site reach a more consistent traffic level (i.e., 5,000 to 10,000 page views a month), you should consider adding CPM advertising to the mix — and I am not talking about AdSense CPM ads.
Due to AdSense revenue fluctuation and general downward trend in March, I decided to add CPM advertising to my personal finance blog this month — despite many warnings that CPM advertising is dead. I am happy to say that I am seeing positive outcome with minimal negative impact on my AdSense revenue.
I believe the three primary benefits are:
While there are many CPM networks to choose from, the two networks that I am currently using are ADSDAQ, BURST Media, and ValueClick Media. However, you should do your own research, or you could simply try them all. Here are a list of articles about CPM advertising that I recommend:

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Thanks. Great information and I was looking into alternatives to Adsense.
@AndyS — Thank you.
Great advice!
Thanks for sharing your experiences…
Absolutely true, apart from AdSense there are many online advertising programs available in Internet marketing. CPM advertising is one of the best online advertising. This information would be useful for the readers, thanks for sharing.
Thanks for this information. But I suffer low traffic to my blog PlanetAutomobile.com. Would you suggest me how to increase traffic to my site