What´s a blog?

I´m sure you never used this application for learning. Lets start by understanding the meaning of what is a blog.

"Recently many people have turned to "blogs"as an alternative to traditional websites and discussion lists. Blogs are web diaries with buit-in tools that allow users to publish information on the web in much the same way they use a text program.Unlike traditional websites, blogs are automatically updated each time a person publishes a new ¨posting¨. By Gordon Lewis. The Internet and Young Learners.