What is a blog?

A blog, or weblog, is an online journal or updates published by a person or group of people.

Blogs have typically been used by individuals or peer groups, but now are being adopted more by companies and organizations as well.

Blogs often contain public as well as private content.  Depending on the functionality of the CMS (Content Management Software) software that is used, some authors may restrict access — through the use of accounts or passwords — to content that is too personal to be published publicly.