What is a Blog?
A blog (short for weblog) is a personal online journal that is frequently updated and intended for general public consumption. Blogs are defined by their format: a series of entries posted to a single page in reverse-chronological order. Blogs generally represent the personality of the author.
The author of a blog is often referred to as a blogger. Many blogs syndicate their content to subscribers using RSS, a popular content distribution tool. (Retrieved on October 22, 2008 from http://searchwindevelopment.techtarget.com/sDefinition/0,,sid8_gci214616,00.html)