From the fine folks at Ranchero comes the beta of MarsEdit, a dedicated Weblog editor. If you have a current NetNewsWire license, MarsEdit is free. It also picks up your current NetNewsWire 1.x editor preferences and drafts.
So far, given that this is my first post in it, I like it.
And it uploads images too (mmm, 110 film!):
Update: NetNewsWire 2.0 public beta is also released.