One criticism: I bought the print version, and there are a few illustrations there that were obviously done in color for the e-Book version, but they wind up in black-and-white in the print version. Surely it could have been easy enough to change the way these illustrations looked in black and white to optimize it for the print book e.g. using dotted or dashed lines, or more strongly contrasting shades of gray? I felt rather frustrated at that. However, it was the only problem I encountered (it only affects literally a few small things) and it was not a major drawback. I still give the book a full 5 stars, it's still great despite this minor issue.
Use a contextual ad service. Once your blog contains high quality content and has begun to attract an audience, you can make money using Google Adsense, WordAds, or any other contextual ad service. These automatically generate ads in the amount, size, and placement you specify, matching the ads chosen to the topics you write about. The more readers who click on the ads shown on your site, the more money the advertisers will pay you.
It makes your blog portable. If you decide to move from one blog host to another, you just take your blog content AND your domain name with you. That way you don’t lose the links you’ve built over time. If you didn’t have a domain name, you would lose all the “search engine rankings” and “link value” you’ve built up so far – so in a sense, you’d be starting over.

Lets say, for example, that you refurbish and resell used smartphones out of your home. You could use a blog to attract visitors to your website where you list your current phones for sale. Your blog might cover topics about DIY refurbishing. On one level, it seems counterintuitive because you want people to buy your phones, but it also helps you build a brand and gain recognition. Social media guru Jay Baer explains the concept on Copyblogger: