Google Blogger supports advertising through Google AdSense, PayPal links, and limited affiliate links. If you use excessive affiliate links, fail to add relevant content when including affiliate links, or get paid to increase someone's search engine ranking, Google will move your blog much lower in the search rankings, greatly decreasing your audience traffic.
Fortunately, there are many resources available to help. In addition to the BlogHer events and site, some of my personal favorites for learning tips on writing compelling content, marketing and monetizing are Fizzle.com, MichaelHyatt.com and Problogger.net. All three provide lots of free advice (and more in-depth training and support is available for a fee).