Thank you, Tina!
Regarding websites and blogs, you usually have to pay someone to host your website, but you maintain control over it and can move it wherever you want. Blogs are generally free, and you don't need to know any code to set one up and enter information. But you don't own it, so it could go away. Just like with Etsy. If you displease them they will shut down your shop. If you want to set up a blog go to www.blogger.com. It only takes a few minutes to do and be online.