Blogging can be an entertaining past-time or hobby, but it can also be a nice way to make extra money. If your blog has a lot of traffic and subscribers, if you are serious about writing fresh content regularly and build a quality web-page to host your blog, signing up with AdSense could help you make from a couple of dollars to a real income every month. AdSense will put up ads on your website and give you money everytime a visitor clicks on the ads.