Unknown_user0001
I Love YTtalk
If you already have an approved Adsense account you simply use the code generated at adsense.com and insert that into your site where you want it to appear. If you dont have an approved Adsense and want to have a website with ads it is best to develop good content for the site for a good 5-6 months before applying so that they can see you have good content/traffic and have been around for a while.
You could try monetising a blogspot blog if thats your kind of thing and if you have an approved Adsense account.
I will take your advice and try blogger as it is google owned which probably means I will have more chance at getting it. But I have also heard from a few friends that blogger rates your blog/website so it might drive more traffic