Google Adsense
The largest and most popular online advertising network. Allows you to display ads relevant to your site's content. Text and graphics ads of various sizes and shapes available. Adsense for Search also allows you to generate revenue from Google searches conducted on your site.

Target First
In the TargetFirst Network, publishers with the best performing traffic will always be served the highest paying ads, ensuring maximum revenue. A flexible self-service interface, custom ad placement tools and detailed real-time reporting give publishers more control enabling them to maximize revenue.

Bidvertiser
Bidvertiser place the ads of the highest bidders on your website. That way the publisher earns the highest possible revenue. You can also decline ads that you don't like.

All Feeds
AllFeeds a llows you to display over 25,000 advertisers in numerous ways: Contextual ads, Popaway ads, Text Links, DHTML Popaways, and your own Free Web Site Portal. 60% of bid prices is paid out and free content themed to Your Site is available. Place news, sports, and weather on your site, free! New 'Popaway' DHTML ad delivery adds revenue to your text content and blogs.

Tribal Fusion
Tribal Fusion have rigorous quality standards for approving publishers to their network. Once approved they provide you with hig CPM rates and ad serving technology allowing you to serve and manage your own campaigns.

Adbrite
An excellent network if you wish to sell text link ads on your site. Very useful for generating revenue in addition to other ads displayed.

Inter Click
Inter Click allows you to earn revenue from displaying various advertising types and formats, from interstitials, to pop-unders and rich media overlays. They have a 65% monthly pay out.

Mamma Media Solutions
An advertising network that provides you with search and graphic advertising opportunities for your website.

AdAgency1
AdAgency1 is an advertising network with a 70% payout, net 60 days via StormPay. To be eligible your site must be in the English language and have over 15,000 impressions per month.

Azoogle Ads
An increasingly popular online advertising network with a high 75%, net 15 payout. Eligible sites must primarily be in English and receive over 25,000 impressions per month. Azoogle are primarily interested in US and Canadian based sites.

Casale Media
If your website receives over 15,000 unique visitors per month you might increase your revenue by joining the Casale Media advertising network. Every ad delivered to your site by Casale is optimised to maximise your online revenue and inventory allocation.

Clicksor
Clicksor will pay webmasters up to 85% of the advertising revenues to place contextual ads on their websites or blogs. Payments are based on a net 15 terms on a bi-weekly schedule. Webmasters can select from a wide range of decent media such as Text Banners, Graphic Banners, Pop-Under Advertisements, Search box and XML feed to host on their websites or blogs.