Top 10 CPM ad networks

Casale Media

Casale Media is a top tier, premium CPM ad network based in Canada. I’ve been with Casale for more than eight years and their rates, ad quality and attitude is one of the best in the industry. Their requirements in terms of traffic and website quality are pretty high though, so they are not suitable for beginner webmasters or bloggers. You will achieve the best results if most of your traffic is from North America, Australia or Western Europe.

Conversant (formerly ValueClick)

Conversant is also one of the oldest and most respectable ad networks around. They offer all standard ad formats and their rates are competitive. Payments are always on time, on every 20^th of the month on your bank account free of charge. Requirements to join the network are quite high, but they are not as picky as Casale or Tribal Fusion. However, their traffic requirements are very low as they only require 3000 monthly page views

Propeller Ads Media

Propeller is a traditional CPM ad network, which means that they pay for ad impressions. Great thing about them is that they pay for international traffic and provide 100% fill rate for your inventory. Propeller is not so well knows as some of the networks listed here, but their rates are surprisingly high. For example, I get from $2-$3 CPM for pops on an entertainment website, which is higher than many other networks I have tried. They offer wide range of formats, but their OnClick and Mobile Pushup ads have by far the best rates.

Tribal Fusion

Another top tier network with a very long tradition. Top tier are their requirements too. In addition to high quality content which is being updated on regular basis, attractive page design, they require no less than half a million unique visitors per month! If you can meet all these requirements, rates you will get are very good and comparable to Casale or maybe even AdSense.
Payment methods and terms: Check; NET45, minimum $50

BuySellAds

BuySellAds is a form of a marketplace which allows you to sell your adspace directly to potential advertisers. You just have to create an ad and they will do the rest for you – process payment, bring in the customers, provide statistics. Of course, they do this for a 25% fee. This platform is very popular among advertisers, because they can hand pick websites where they want their ads to appear. Your website or blog needs to have a minimum of 50,000 page views per month in order to qualify.
Payment methods and terms: PayPal, Check, Wire transfer (minimum $500, $35 fee); NET1 (daily), minimum $10

Technorati Media

Technorati is best known as a blog search engine and directory. In addition to their main business, they also run a great advertising network. Their rates are pretty decent and traffic requirements are not that high. Signing up is easy, but the approval can take few days since they review all websites manually. Meanwhile, you can log in and get familiar with the backend interface.
Payment methods and terms: PayPal, Check; NET60

AdCash

AdCash is not really a CPM network, but is more performance based, like traditional affiliate programs. This means your CPM rate will mostly depend on how well traffic you send performs. You can choose which programs you wish to promote or you can algorithm decide which campaigns will perform best, based on your visitor demographic. AdCash seems to be more suited for entertainment website, since many of their offers are related to online games or mobile content.
Payment methods and terms: PayPal, Wire transfer, Skrill; NET30, minimum €25

Matomy Display

Another performance based ad network I wrote about more in detail here. Once you paste the code on your pages, it will take few days for their algorithm to decide which ads will perform best for your content/audience. Depending on your visitors and how well they convert, you can make very decent amounts with this company. In my experience, earnings will fluctuate a lot, especially on smaller websites. However, average income is higher than many CPM only networks.
Payment methods and terms: PayPal, Wire transfer; NET30, minimum $50

Sovrn (formerly Lijit)

Sovrn is really great if majority of your traffic comes from the United States, otherwise you should probably skip them, since the fill rate will be very low. If your visitors do come from the US, I can highly recommend them. Their rates can compete with some bigger networks I mentioned here, and the payment is always on time. They also provide website statistics and user demographics (based on data they collect from ads on your sites). However, data I’ve been seeing there is strange at best, so I wouldn’t rely on it.
Payment methods and terms: PayPal, Wire transfer; NET30, minimum $50

PopCash

This ad network is specialized in popunder advertising. They accept publishers from all over the world and offer ads for all countries. They offer daily payments (ye, you read this well) and offer quite competitive rates. If your audience doesn’t mind popunders, I recommend you give them a try. I
Payment methods and terms: PayPal, PayZa, Paxum; NET1 (daily), minimum $10