What Blog means

I found this on the help webpage.. but I still think Blog is a stupid word for it.

"Blog" is short for Web log, which can be anything from a news site to an online journal. Blogs allow you to instantly publish your thoughts and ideas from anywhere.
People all over the world have blogs. It's a fun and easy way to keep in touch with your friends, post links to interesting webpages, or just record your thoughts.