adsense is basically a ppc advertising platform put out by google. you can place ads on your website or blog and when people visit your site and click on the adds you get paid usually a small amount per click.
One month before, I got my first check from Adsense. ($ 102.25). I am proud to be an adsense publisher.... No competitors for Adsense.. Getting suitable ads for the content, that is adsense.... Really love this programme. You can start this after making a blog in blogger. after getting much traffic u can register with adsense and make money..
adsense means the ad which is placed between the content, a lot of site do like this like:mgoogle adsense, yahoo adsense, adbrite(for adult) and others. Good example of adsense- ezinearticles.com