A blogger has area of focus. That area usually defines the kind of blog that shall be written. Apart from the area of focus, the way the content is presented also counts.
A personal blog is more of a diary or the way an individual feels about a part of his or her life. This is more expressive than informative. Usually, it builds a connection between the reader and the author.
Collaborative blogs or group blogs
This is a kind of blog where many authors collaborate to write posts. These are usually based on a single topic. Collaborative efforts are set up by established bloggers so that there is hardly any pressure of maintenance of the website and fan base.
It is an era where people like to see more than read and what better way than to go for images or light weight animations to achieve this? Microblogging refers to a blog that has images, videos, pictures and text or other media. It is useful for business promotions, entertainment updates and at times staying in touch. There are many add on tools that make it much simpler for the user to create microblogging sites.
Corporate and organizational blogs
A blog can also be used for business promotions. Say there is this organization which wants to gain more popularity using is blog. It can do so only when there are updates about the various areas it works on and when it goes for information that would be useful to bridge the gap between the potential consumer reader and the organization. Some blogs focus only on that, and are known as corporate blogs.
Media types have also been known to define blogs. And give them different names too. A blog comprising links is a link log, one having videos is a vlog, for a portfolio of sketches, we have a sketchblog and for photos, it is a photoblog. There are blogs written on typewriters and then scanned. They are called typecast blogs. Tumblelogs are ones with shorter posts and mixed media types. A rare type of blog hosted on the Gopher Protocol is known as a Phlog.
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.