The term blog is used to describe an online record or which is often updated regularly.  Note that blogs compare highly to personal dairies with only some little variations her and there. The frequency of updating a blog varies a lot. It is possible for some blogs to be updated on a daily basis, hourly of even after a week or even a month. The term weblog is an alternative descriptive word for a blog while an update can sometimes be called a post or an entry. Blog posts are generally short pieces of writing which are mainly aimed at sharing information across a network of people such as family members, people who work together or friends. Due to the increasing popularity of this means of communication, businesses all over the world are innovating and creatively using this avenue for marketing their products and services.

Most of the blog content is written using an informal style since many people who do posting are not professional y trained writers. The writings on many blogs are rarely subject to professional editing and proof reading. Similarly, the subject in blog posts is varied but will often contain writings on particular issues of interest to the person who is writing the blog post and the target audience the writer has in mind. People tend to write about personal experiences and those relating to the human conditions or events around them.

A common feature in most personal blogs is the use of simple and clear language to express ideas and explaining facts. This feature, combined with the fact that most blog posts are usually short may explain the popularity of this way of communication. With diversification of blog writing, there has been an increase in the development and usage of corporate and business blogs as formal communication channels.