Blog is short for "web log".
Blogs are websites that can be added to easily by anyone. You don't have to have computer programming skills or be a web developer to set up and add to a basic blog.
Blog technology is powered by several companies. One of the most notable is Blogger which is owned by Google.
To set up a blog you need to visit www.blogger.com and decide on a user name and password. You can then decide on the look you want from a selection of templates.
There are lots of extras you can add to your blog to customise it such as pictures, links to other sites and an archive system for your posts.
Blogs are ideal starter mini websites but they can be useful to businesses in other ways - more later....