Beginner's Guide to Blogging with Blogger - #9 - Making Money on Blogger
Once you start getting more and more readers to your blog you may want to think about adding Google Adsense for a way to make a few bucks. Google Adsense are relevant ads that are put on your site. When visitors click on the ads, you make a little money. It might not pay the rent (unless you have a lot of readers, then who knows!), but it may pay for dinner and drinks with friends.