AdSenseASP.NET is a library of free ASP.NET web controls to render Google AdSense JavaScript code that displays Google AdSense ad units. Currently it's lib of 3 web controls: AdSenseAdUnit, AdSenseLinkUnit and AdSenseReferralUnit. Also it contains configuration block that allow you to configure Google AdSense settings across the whole your site. So you don't need to setup AdSense PublisherID, channels, color palettes for each of the AdSense ad unit.