I've been experimenting with Adsense on blogger for years. I had some ideas that the company I work for could put on the web and wanted to work with Adsense so I just started with a blog about my local sports team.

Eventually I made another blog about local and regional politics and analyzed and repackaged some government data as a whole series of posts that proved slightly popular. Now I'm up to around $1000 per year.

I'm working slowly at making a few sites based on the data I've already done and some new data.