Before you go straight to the "monetization" aspect of blogging, you need to ask yourself first. For how long do you intend to keep your blog? For now, it may be part-time but once you get enough traffic, you'll definitely need to re-assess your goals. I suggest that if you really want to make serious money from your blog, use a self-hosted blog such as WordPress. As for the monetization part, you can start by applying for an AdSense account. You can also become an Amazon Affiliate. Aside from these two methods, you can also make use of Chitika, Commission Junction, NRelate, Disqus, ClickBank, etc.