Now onto the differences of the Wordpress.com and .org. The differences are .com is free and wordpress will host the site for you, but you don't own the site and can't put ads up if you decide to monetize your blog. I have heard of people losing their blogs because of some type of rules infraction and lost all of their content. Now with a .org blog you control the whole show. You will need to pay for hosting and pick out a domain name like I did with Beltwayboysports.com. I should have went the free route to begin. I knew absolutely nothing and had to figure it out on my own. It really is best to get a handle on how everything works before striking out on your own. It will save you a bunch of headaches, trust me!
Hosting is not all that expensive to get. DO YOUR HOMEWORK when you are searching for a place to host your site. I would recommend my host, but I'm not totally satisfied with their service. I did not do enough homework before I selected them. So I learned a very valuable lesson. I was just so excited to get going and let my guard down for a second and wham. My suggestion is to go and research all the different platforms. Only you will know which one fits your needs. Everyone is going to talk about whatever one they are comfortable working with!
Here is another good resource site that is packed with a ton of great information to help you out as you start your journey into the blogging world. http://2createawebsite.com