Blogs emerged in 1997 as an online diary. Nowadays they are used in many different ways, as expecifics of a subject, varieties, personal or corporate blogs. It can be defined as a site in wich structure allows the fast update with the adding of posts or articles. These are, in general, organized in a inverse chronological way, may be written by several people, accord to the blog policy.
Some blogging systems are very attractive because of the facilities they offer, providing its own tools that dispense the knowledge of HTML, like the ones that follow: