Just trying to understand their business

There are many ways on how to spend your day. Writing is one of them. In my own opinion, knowledge in the internet is an advantage. I said so coz there are lots of opportunities waiting for those who are blogging. Many of the people who write blogs today simply want to share their opinion on something. But then there are the business-minded folks, who have found a way to use blogs, or Web logs, to bring in a little extra cash too. Im just wondering how they do it. But as i searched for that interesting topic that has something to to with earning money, i realized that there are really truths behind all these issues. I even got some tips on how to optimize it but i think it needs a lot of efforts to reach what you want to achieve. Perhaps many bloggers are now becoming rich nowadays through their websites. I want to study it more but due to insufficient time, i could not do so. What I only learned is the adsense but it seems very difficult to meet their needs.
I heard a lots of terms , i can understand them but i cant do them --- just like the following--- 1.) Traffic--- in our society this is a big problem but in this world it is something like a gold because if you have a lot of it, it means that you have the tendency of earning a lots of money. I want to get a traffic but as long as i know, you have to register in some search engine or something like that and you have to pay something for that application. 2.) ad codes--- these are really confusing for a non web master like me.--------If you're interested in taking it further — blogging for bucks, if you will — here are five strategies that could turn your blog into a moneymaker.1.)Sell advertising ,2.)Help sell others' products, 3.)Solicit contributions ,4.)Market your services in your blog and 5.)Use a blog to deepen your existing customer relationships.--- Are these easy to apply?