your favorite corporate weblogs

-Okay, what businesses are doing blogs right?
-What businesses aren't?
-I'm looking for fun, edgey, but not insane. I'm looking for relevant, compelling, topical.
-I'm looking for blogs you've gone back to -- that you've visited more than once.
-Please leave links.

Person with the most relevant links left in my comments gets a $7 amazon gift certificate. Yah, I know, $7 isn't much. Jenna's 7 and I'm broke, so I picked $7.

[[Research assignment ends at 9:00 a.m. US Eastern Time Wednesday (tomorrow) morning.]]