Why are you not using AdSense? AdSense pays pretty well for Finance blogs. Also, I think the info links slows down your blogs loading speed. That popup info links window is a little to much and annoying to me.
Think about user experience on the blog, people visit a blog for the content and not for ads. If there questions now answered in the content they will click on an ad if it's related to the topic at hand.
AdSense and affiliate marketing is a good option to make money from your blog. I do this on my blog.