Ad Networks offering skyscraper advertisements
Tribal Fusion have emerged as one of the leaders in internet advertising by only representing high quality sites with original content, and so are very difficult to be accepted by, although they do offer the highest paying campaigns and a great service.
Burst Media are one of the longest established online advertising network, being established in 1995, and have survived due to their high quality network of publishers and advertisers, and the great targeted ad buys which they are able to get for independent sites.
Google is the leader in search technology on the internet, and their AdSense Network offers accurately targeted text adverts targeted to the actual content of each page, therefore being able to offer high eCPMs.
Casale Media are quite a new player in internet advertising, although have emerged as a top network, offering great rates for leaderboards, skyscrapers and pop-unders, and paying 70% of the revenue with a minimum payout of $25, they are hard to beat.
ValueClick Media is the resulting network of the acquisition of Fastclick by Valueclick in late 2005. This new combined network combines the best part of Fastclick, namely their impressive publisher interface and statistics, and Valueclick, which was their large international media selling team.
Ad Pepper is a rapidly expanding online ad network with offices all around Europe and in the USA. Established in 1999, and with this wide representation they are able to gain high paying campaigns for many geographic areas. Also, with NET 30 payout and a 50/50 revenue share they are a solid option in your ad chain.
Yahoo Publisher Network offers a similar contextual ad program to AdSense, but aimed more specifically at a US audience with ads which although not quite as accurately targeted sometimes offers higher CPC rates and therefore eCPMs.
RealTechNetwork is a relatively new advertising network, but is establishing a reputation as reliable and providing decent rates, especially from US/Canada/UK.
Accelerator-Media are the online arm of eType, the huge UK advertising company, and so are able to get advertisers of the highest quality for your UK visitors, and therefore get impressively high eCPMs.
CPX Interactive have emerged as a great second tier network due to offering all the popular creatives with decent payouts, great support, and 100% sellout rates.