There are many different types of blogs, differing not only in the type of content, but also in the way that content is delivered or written.

      1.       Personal blogs

The personal blog is an ongoing online diary or commentary written by an individual, rather than a corporation or organization. While the vast majority of personal blogs attract very few readers, other than the blogger’s immediate family and friends, a small number of personal blogs have become popular, to the point that they have attracted lucrative advertising sponsorship. A tiny number of personal bloggers have become famous, both in the online community and in the real world.

      2.       Collaborative blogs or group blogs

A type of weblog in which posts are written and published by more than one author. The majority of high-profile collaborative blogs are organised according to a single uniting theme, such as politics, technology or advocacy. In recent years, the blogosphere has seen the emergence and growing popularity of more collaborative efforts, often set up by already established bloggers wishing to pool time and resources, both to reduce the pressure of maintaining a popular website and to attract a larger readership.

      ·         Microblogging

Microblogging is the practice of posting small pieces of digital content—which could be text, pictures, links, short videos, or other media—on the Internet. Microblogging offers a portable communication mode that feels organic and spontaneous to many users. It has captured the public imagination, in part because the short posts are easy to read on the go or when waiting. Friends use it to keep in touch, business associates use it to coordinate meetings or share useful resources, and celebrities and politicians (or their publicists) microblog about concert dates, lectures, book releases, or tour schedules. A wide and growing range of add-on tools enables sophisticated updates and interaction with other applications. The resulting profusion of functionality is helping to define new possibilities for this type of communication. Examples of these include Twitter, Facebook, Tumblr and, by far the largest, WeiBo.

      3.       Corporate and organizational blogs

A blog can be private, as in most cases, or it can be for business or not-for-profit organization or government purposes. Blogs used internally, and only available to employees via an Intranet are called corporate blogs. Companies use internal corporate blogs enhance the communication, culture and employee engagement in a corporation. Internal corporate blogs can be used to communicate news about company policies or procedures, build employee esprit de corps and improve morale. Companies and other organizations also use external, publicly accessible blogs for marketing, branding, or public relations purposes. Some organizations have a blog authored by their executive; in practice, many of these executive blog posts are penned by a ghostwriter, who makes posts in the style of the credited author. Similar blogs for clubs and societies are called club blogs, group blogs, or by similar names; typical use is to inform members and other interested parties of club and member activities.

      4.       Aggregated blogs

Individuals or organization may aggregate selected feeds on specific topic, product or service and provide combined view for its readers. This allows readers to concentrate on reading instead of searching for quality on-topic content and managing subscriptions. Many such aggregation called planets from name of Planet (software) that perform such aggregation, hosting sites usually have planet. subdomain in domain name.

      ·         By genre

Some blogs focus on a particular subject, such as political blogs, journalism blogs, health blogs, travel blogs (also known as travelogs), gardening blogs, house blogs, Book Blogs,[34][35] fashion blogs, beauty blogs, lifestyle blogs, party blogs, wedding blogs, photography blogs, project blogs, psychology blogs, sociology blogs, education blogs, niche blogs, classical music blogs, quizzing blogs, legal blogs (often referred to as a blawgs), or dreamlogs. How-to/Tutorial blogs are becoming increasing popular.Two common types of genre blogs are art blogs and music blogs. A blog featuring discussions especially about home and family is not uncommonly called a mom blog. While not a legitimate type of blog, one used for the sole purpose of spamming is known as a splog.

      ·         By media type

A blog comprising videos is called a vlog, one comprising links is called a linklog, a site containing a portfolio of sketches is called a sketchblog or one comprising photos is called a photoblog. Blogs with shorter posts and mixed media types are called tumblelogs. Blogs that are written on typewriters and then scanned are called typecast or typecast blogs. A rare type of blog hosted on the Gopher Protocol is known as a phlog.

      ·         By device

A blog can also be defined by which type of device is used to compose it. A blog written by a mobile device like a mobile phone or PDA could be called a moblog.[37] One early blog was Wearable Wireless Webcam, an online shared diary of a person’s personal life combining text, video, and pictures transmitted live from a wearable computer and EyeTap device to a web site. This practice of semi-automated blogging with live video together with text was referred to as sousveillance. Such journals have been used as evidence in legal matters.

      5.       Reverse blog

A reverse blog is composed by its users rather than a single blogger. This system has the characteristics of a blog, and the writing of several authors. These can be written by several contributing authors on a topic, or opened up for anyone to write. There is typically some limit to the number of entries to keep it from operating like a web forum.