To Set up a blog, go to Blogger at http://www.blogger.com. Set up your blog and begin posting in no time. This is a good and quick setup for getting your site started and getting searched by Google.
When this is done, set your site up for Google Adsense (http://adsense.google.com). Remember to follow the Google Adsense Terms of Service.
Once your site is approved for Google Adsense, place the Adsense code and begin to market your site through SEO (Search Engine Optimization), Once your site is at the top in the search engines, you will generate traffic and if you have enough click through on your ads, you will make money!
Google bills advertisers on Pay per Click basis (PPC). Advertisers are required to pay only when any visitor clicks on their ads. They bid against each other for the keywords in order to receive better placement and thus prices for each keyword differ from one another. It is better to choose keywords for your blog which pays high $ per click.
Amazon Associate program is another important way to make money blogging. The Amazon Associate program gives opportunity to blog publishers to promote any product from its inventory by adding a predefined code to their website/blog, which, when clicked by a visitor, takes them to the relevant product page. Once the visitor buys the product, the blog owner will be compensated with a commission.
Text linking is also a way to earn money through blogs. You have to just put a link of other webmaster on your blog and you get money for that. Isn't it interesting? But remember the theme of your blog must be according to the back link. So it depends on you how much competitive keyword do you choose to target?
There are various ways you can earn money through your blog - like promoting affiliate programs, paid reviews, selling advertisements etc.
For Example visit www.WebExpress.in, www.RetailGuru.in, www.SingleDateFinder.com, www.WebDirectoryOnline.ws