Blog is short for “Web Log”. This is a web page that is created by and gives the opinions of the author. It serves as a public dairy or journal for the author.Blogs are often written by high profile people within a business to share thought and insights of products or policies of the company. One well know blog is by Matt Cutts of Google, (see Related Links)
Blogs are generally updated daily and often provide a way for others to express their opinion on the subject of the blog