What is a blog?

I just posted a piece over at The Linguist team’s blog that I rather like. It’s the introduction of our blog to the team, and part of the communication is: what the heck is a blog?

Especially this chunk:

A blog – short for web log – is a simple, easily updated website. It’s not corporate; it’s personal. It’s not formal; it’s blue jeans and an old T-shirt. It’s not PR; it’s people. It’s not the company line; it’s your line. It’s not insular; it’s connected to the whole world of information out there.