One blog back from the dead, and a new blog that has arisen from the ashes of a newsletter.
First up, the Barenaked Ladies started a blog when they were recording their new album (Everything to Everyone) in LA earlier this year. It went quiet after they'd finished recording, but the blog now has a spiffy new look, and they've started posting again. Yay! (And their blogging software even appears to have been updated to allow multiple paragraphs in a single post! Wow!)
Secondly, Amy Gahran used to write the "Contentious" newsletter which focussed on writing content for on-line media. It went quiet about a year ago, but Amy has now started it up again, as a blog. (Note that the old newsletter archives are still available, and still worth reading.) Well worth tracking.