Google AdSense - Offers a contextual advertising solution to web publishers Delivers text-based Google AdWords ads that are relevant to site content pages. ValueClick, Inc. - Provides internet advertising solutions for publishers of web sites and online advertisers, focusing on cost-per-click. BClick - Banner advertising network where the advertisers pay on a per click basis instead of cost per impressions. Reystar - Offers pay-per-click advertising and a free web promotion system. Etineria - Seller of theme based portal advertising. Clicksor - An advertising network offers content targeted advertising service on CPC/PPC basis. BidVertiser - Pay per click affiliate program. Point of Impact Technologies Inc. - Provides keyword selection, analysis and management of pay per click campaigns. Etarget - Central European company providing PPC targeted online advertising. Operating in Central European markets: the Czech Republic, Hungary and Slovakia. LookSmart AdCenter - Purchase website traffic with cost per click advertising. Google Adwords - PPC program where webmasters can create their own ads and choose keywords.