Blogs are sources that provide information and news, regarding different topics. The term 'blog' is a more casual and popular term for 'Web log'. There are various types of web logs, depending on the kind of information, they provide.

Blog writing or blogging initially began in the form of diaries. These blog types provided personal information as in an autobiography of a person. This requires conscious writing and highlighted important aspects of a person's life, which most people would be keen in reading. This trend highly popularized the practice of blogging.

Blog Post Types:

1.Interviews: Writers often use interviews to learn more about a particular topic, they are working on. Thus, it may not include relevant information, but a general opinion of the public regarding a specific topic. Mostly, one or two questions are asked to get an overview of different responses.

2.Case Studies: It is one of the most popular types of blogs. Web sites include case studies, usually as review posts, where they add certain content information regarding their sites. Many web sites use case studies as a medium to generate income.

3.News Media: These are blogs which display illegal, incorrect, or inaccurate information. Sometimes, they take the content from a media source and make unintentional modifications and omissions.

4.Reviews: Usually, every online product or service has reviews along with it. They contain personal opinions or experiences regarding a particular product. This helps the readers to make a fair choice.

5.Corporate: Business entrepreneurs use corporate blogs to advertise their products and business processes. They update readers regarding recent projects, or services or any other modifications in business.

6.Rants: These are likely to trigger serious discussions and debates. Topics can range from political to ethical values and there are immense differences in opinions. Hence, they sometimes cause controversies, but are highly informative.

7.Spam or Splogs: Their basic purpose is to advertise commercial companies. They contain large number of links to enhance search engine results. Hence, they make use of repetitive text and keywords.

8.Critique Posts: Often mistaken as 'Attack Posts', they are aimed to criticize a particular aspect of a topic the site is advertising. However, critique blogs are mostly a result of criticism.

9.Personal: Teenagers usually, make use of personal web logs to post their anger or share some of their crucial moments and problems with distanced friends. Visitors have an access to such content and can post their opinions or suggestions on the tagboard.

10.Culture Blogs: A social organization designates bloggers to display content regarding the social aspects of a culture or cultural ethics. Here, the content is highly informal and a visitor can post an opinion, without offending any religion or culture.

Business organizations use branding, sales, relationship, collaboration and knowledge blogs, for different commercial reasons.

Inspirational, humorous, cultures, collation and problem posts are not so common types of web logs, but can bring a desirable change in thinking patterns, if used effectively.