Direct Clicks  
   Offers a do-it-yourself cost per click advertising network. Track referral and affiliate programs, pay per leads, CPA and CPM campaigns.
   http://www.directclicks.com/

Aaddzz  
   A performance based advertising network. Features include pay per click, banner targeting and real time reporting.
   http://www.Aaddzz.com/

Adviva  
   Online advertising solutions for both web hosts and advertisers, based on the cost per click model for the UK market.
   http://www.adviva.com/

ValueClick, Inc.  
   Provides internet advertising solutions for publishers of web sites and online advertisers, focusing on cost-per-click.
   http://www.valueclick.com/

BClick  
   Banner advertising network where the advertisers pay on a per click basis instead of cost per impressions.
   http://www.bclick.com/

RevenuePilot  
   Pay-per-click search network.
   http://www.revenuepilot.com/

Espotting Media  
   European pay-per-click advertising network.
   http://www.espotting.com/

Reystar  
   Offers pay-per-click advertising and a free web promotion system.
   http://www.reystar.com/

LookSmart Looklistings  
   Purchase website traffic with cost per click advertising.
   http://listings.looksmart.com/

NumberedClicks.com  
   Prepaid, pay-per-click-through banner advertising.
   http://www.numberedclicks.com/

Google AdSense  
   Offers a contextual advertising solution to web publishers Delivers text-based Google AdWords ads that are relevant to site content pages.
   https://www.google.com/adsense/

Google Adwords  
   PPC program where webmasters can create their own ads and choose keywords.
   https://adwords.google.com/

BidClix  
   Delivers qualified visitors from a network of websites and email newsletters using a simple bid-for-placement system.
   http://www.bidclix.com/

7Search.com  
   Gives webmasters the opportunity to promote their website for 1 cent per visitor, the equivalent to 20 cent CPM. Place your site at the top of your favorite keywords.
   http://www.payperranking.com/

Search Craze  
   Search engine with $50.00 in free Pay-Per-Click advertising for signing up.
   http://www.searchcraze.com/

Etineria  
   Seller of theme based portal advertising.
   http://www.etineria.com/

ClicksOr  
   Provides content target advertising solutions for publishers and advertisers.
   http://www.clicksor.com/

BidVertiser  
   Pay per click affiliate program.
   http://www.bidvertiser.com/