While Adsense is probably the best known and one of the easiest ways of making some money from your blog, there are plenty of other ways.
Affiliate marketing is big business and if you can find a program that fits well with your site and your audience you can do very well.
So here's a few...
If you're looking for tips and tricks from somebody who has been blogging professionally for years AND making a nice living from it, Darren Rowse's blog is an excellent starting point:
ProBlogger Blog Tips - The Blog