I’ve been asked that question quite a bit. Sounds like in the U.K. at least, blogs have quite a way to go:

“Our research not only shows that there is no buzz about blogging and podcasting outside of our media industry bubble, but also that people have no understanding of what the words mean,” Carter said. “It’s a real wake-up call.”

A blog, short for Web log, is an online journal, while podcasting is a method of publishing audio programs over the Internet — a name derived from combining iPod, Apple’s popular digital music player, with broadcasting, even though portable devices are not necessary to listen to a podcast.