Adsense is a contextual advertising network that places partner (business) ads on your website. It’s easy to set up—all you have to do is copy and paste some code given to you from Google in the places you'd like the ads to appear on your website. Google will then show ads from advertisers that are a match to the content on your website so that ideally your website visitors see relevant ads.
People who start to blog always thing of making money which tends them toward failure. In my opinion bloggers should choose the topic which interests them. They don’t think about making money. It’s about knowledge, try to learn more and don’t think about money stuff. There are many top blog topics to make money online but you can get success only with the topic you like to write on. Try to choose your topic for the blog. Making money is very easy, don’t think about it much.
As an affiliate marketer, you promote someone else’s product or service to your readers. You link to that product or service using your unique affiliate link. When, someone clicks through that link and makes a purchase (or completes a desired action set by the company), you earn a commission. There are thousands of affiliate programs to join. Some I participate in:
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.