Among the most common reasons for starting a blog is to make money. Of course, this should come as little-to-no surprise given their near-limitless earnings potential. Michael Arrington's TechCrunch blog, for instance, is believed to generate nearly $15,000 per day in advertisements, while Huffington Post generates nearly $30,000 per day. If you're struggling to turn a profit with your blog, you should first check to make sure you aren't making one of the following mistakes. Ads are Poorly Blended Ads that "stand out" from a website or blog's native content are less likely to be clicked. Thi...