A blog is a website in the form of a blog or personal journal. The contents are usually updated frequently and displayed in chronological order (from most recent to least). Readers, for their part, usually have the possibility to comment on what is published.

Blogs generally encourage interactions. In addition to allowing readers to express themselves on the contents, it is customary to include links (links) to other blogs or various online media. The blog authors can also reply to their readers’ comments.

It can be said that a blog is an evolution of a personal journal on paper. People, instead of writing their impressions on a sheet, publish them on the website and share them with all Internet users. As a technology, the blog derives from forums that allowed “conversations” to be started, generating “threads” of messages on the same topic.

According to DigoPaul, a blog can be used to share opinions or spread news. Sometimes these are independent sites, while there are also blogs that function as sections or attachments to the main website. Currently there are also blogs that resemble information portals, with news and journalistic articles.

More and more companies are encouraged to have a blog and include it on their website. This is because the aforementioned tool is considered to bring with it a wide list of advantages, among which we can emphasize the following:
-It contributes to improving sales. And it is that through it the company makes its products and services better known as well as the benefits they generate.
-In the same way, it should be noted that having a blog makes the company in question better position itself on the Internet.
-It is also a great tool for the company to publicize its achievements. That is to say, so that it can expose from the recognitions it achieves to the characteristics it possesses and that give it a remarkable superiority over its rivals.
-The blog is a resource that allows the company in question to be “advertising” and promoting itself on the Internet 24 hours a day, 365 days a year.
-In this list of advantages it should not be overlooked that it is a great way for the company to make known to its customers or potential customers the set of new features it introduces.
-Of course, it should not be overlooked either that it allows us to show that it is a company in accordance with the times in which we live, attached to reality.
-There is also the fact that it serves to retain the customer.

To develop a blog you do not need great technical knowledge. There are services like LiveJournal and Blogger that offer free hosting and management of blogs. It is also possible to register with services such as WordPress, which provide software for creating blogs, although this software must be hosted on a server.