This is from Webopedia:

(n.) Short for Web log, a blog is a Web page that serves as a publicly accessible personal journal for an individual. Typically updated daily, blogs often reflect the personality of the author.

(v.) To author a Web log.

Other forms: Blogger (a person who blogs).

I’ve found that so many agricultural communications folks don’t know much about it that I thought it might be helpful to put a definition.

I would add that this year will be the year that companies start using blogging and RSS as a way to communicate in a very personal way and to easily syndicate that information.

I wish there was a prettier word to use than blog though.