What is a blog? And why are they so popular?

A blog (a contraction of the term “Web log“) is a Web site, usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in reverse-chronological order. “Blog” can also be used as a verb, meaning to maintain or add content to a blog.

A blog is a special type of Web page—an online journal—with unique characteristics that set it apart from regular Web pages. Blogs are made up of multiple journal entries listed in reverse chronological order that invariably include a title, a date, and time stamp. Each blog entry also will have its own Permalink (a unique Web address) and sometimes a Trackback (an automatic entry that appears in your blog to tell you that somebody has written about your entry, and linked to it), a Category, and Comments.

Comments are one of the things that make blogs unique and special. Anybody who reads a blog may, if the blog owner allows it, publish comments under a blog entry to agree, to disagree, to sympathize, or to share their own thoughts. This interaction is different than more traditional feedback utilities such as Guestbooks. Guestbooks are generic—entries are not tied to one particular page, or commentary. Blog comments, on the other hand, are tied directly to a particular entry.

Who uses blogs?

Nowadays, anybody can use a blog. Traditionally, blogs have been used by journalists, political commentators, and the like. Blogs have been used as the instrument of choice for some amazing exposés over the years, some of which are mentioned in Wikipedia’s article about blogs. In recent times, blogs have been adopted by mainstream Internet users, thanks in part to Blogger.com and LiveJournal, and MSN when they introduced MSN Spaces—a very easy to use, free blogging service that is available to all users of MSN Messenger.