Sorry for the delay in responding. I have no results yet with Adsense. I'll start my training soon. To promote the site I use Twitter (linfo.utile). I will also certainly use
http://www.allosponsor.com/ but also search engines, Adwords, directories, forums, blogs, social networking, digg-like videos, podcasts, exchanging links, newsletter ... without forgetting the pub. offline. In short, a big big job!