A blog, which is just a web-log, is a website that publishes articles or features that are well known as posts or blog posts that are written by a single person or a group that utilizes any or a blend of the following:
 
·    Hyperlinks
·    Videoblog
·    Audioblog
·    Photoblog
·    Straight texts
 
 
They are normally positioned and presented in reverse sequential pattern. Blogs are basically used for the following use:
 
·    To build an online publishing platform
·    To have an online web dairy or journal
·    To achieve an online administrative system
 
A classic blog comprises the following elements:
 
·    The group that the blog belongs to
·    The name of the blog
·    The time and date of the blog entry
·    The main matter of the blog
·    The track of the sites that have linked the blog
·    The URL of the article
·    The comments that the readers leave
·    Some other elective stuffs like archives, calendar. Add-ons and so on.
 

A blog can as well contain a footer that is usually placed at the bottom of the blog, which could show the author, date, group or the stats. There are different types of blogs. Some of them are:
 
1- Personal Blog: A personal blog is also well recognized as an online dairy which might consist of a person’s daily experience, thoughts, poems etc.

2- Health Blog: Health blogs contains matter related to health issues. Medical Blog is an important group of health blog that includes medical reports by health care experts.

3- Travel Blog: This consists of travel journals and features regarding places of various interests.

4- Political Blog: a political blog includes news on political activities, the latest updates and so on.

5- Religious Blogs: they include matters related to religion.

6- Educational Blogs: they hold matters related to studies either by different students or even teachers.
 
There are many more types of blog that would run up to many pages if we keep on naming them. Blogging basically is done on habitual basis. The word blogging means a process of hosting, publishing, maintaining or posting an article to prevailing blog. On the other hand the word blogger means an individual or a group who possess a blog.

Currently there are millions of blogs found over the internet and the number seems to keep constantly raising day by day. All this is due to the availability of different blog software, devices and other applications that make it simpler for any individual to revise or maintain the blog. Due to this, now the bloggers can be classified into 4 important forms. They are:
 
1- Personal Bloggers: they are individuals who aim at keeping their blog as a dairy or post on any subject that he/she might want to publish.
2- Professional bloggers: they are individuals who are employed to do blogging.
3- Organizational Bloggers: they are individuals who aim on internal or external interaction in an organization or institute.
4- Business Bloggers: they are individuals who aim at upholding services and products.
 
There is also something known as Problogging or in other words Professional Blogging. They are blogs that are aimed at making profits. Individuals who earn money from blogging are known as Probloggers.  
 
Some of the choices for the Probloggers to earn money are: RSS advertising, affiliate programs, advertising programs, digital assets, sponsorship, business blog writing gigs, non blogging writing gigs, donations, merchandising and many more.
 
You will have to keep in mind the following stuffs to gain success in Probloggin. They are:

1- You have to know your target audience as it is the solution for attracting readers.

2- It takes a lot of hard work and time for Problogging thus the Probloggers need to very tolerant.

3- Probloggers need to try out a variety of affiliate programs and ads that help them to earn money.

4- The Problogger needs to aim at a particular niche subject and try to be the outstanding blogger on that particular subject.

5- A Problogger must try to design the blog in such a way that it catches the attention of the reader and keep him/her interested.

It is definitely achievable to earn good amount of money through blogs. To become a well doing Problogger you just have to have the zeal and right approach and also be ready to take a little risk.