One added benefit is that if someone clicks on a link from your website to Amazon and ends up buying multiple items (not just the item you are promoting), then you would get credit for the entire sale! Imagine you recommend a book on Amazon, your visitor goes to Amazon to buy a book - and while they're there they end up buying a new TV, a Sony PlayStation, and some other things... you get credit for all of the sales. Not only that but you also earn from any sales you make in the following 15 days from that customer.
Jon Morrow is the gold standard in this arena, and this post encapsulates that. He consulted with me at the launch of my blog, and these 20 principles feel like evolutions of that great advice. My numbers are nowhere near his (frankly, my subscriber list seems fixed lately), but my experience validates the core of what’s here: it’s all about consulting, leading to products (in my case, a bit of the other way around, via a book that arose from my website/blog). If you can afford Jon (I can’t), go for it… provided you truly are an “expert” in a given field, one that other people will pay to listen to. If you can’t, or aren’t (at least yet), just read everything he’s written, here and elsewhere.
A blog itself isn't really a business—it's more of a platform for other income streams. Your content alone won't likely make you money. Instead, you'll have to get advertisers, sell services like consulting or speaking, use affiliate marketing to get a percentage of sales from links people click on your blog, or maybe offer products like ebooks or premium content to actually generate income. ProBlogger has an excellent post about these different ways you can make money.
Once you setup your account on AdSense you will be given a code to add to your blog. This code will automatically display advertisements on your blog from companies who are part of Google’s advertising network. You may see ads from small companies related to your topic, or you may see ads from large companies that are completely unrelated to your topic.