blog
Definition:
Blog is short for "web log" and represents a sort of online journal for an individual or business. Some people use blogs to give their personal reviews on the latest book they read or movie they watched. Others use it like a diary to express whatever is on their mind at any given time or to tell you what they had for breakfast that day.
Blogs have grown wildly in popularity because of the free-form, no rules nature of the writing and the fact that anyone can have their own blog. Most blogs also allow you to comment on what people write thus inviting social interactivity on the blog.
By nature, blog sites are relatively easy to set up. Popular blogging sites include WordPress, Blogger and Xanga although there are hundreds more. Web sites such as MySpace and Facebook were probably once considered blogging sites but have developed into much more intricate social networking sites.