Mechs and the City is a new blog written by rudemech over on the Hangar. Welcome to the blogosphere.
Also, Soren has a tumblr called Harmful Mechanic. Be careful, some of his stuff can be NSFW.
Also, Greg Strom -- of the Orion 6 blog -- is putting that blog on hiatus for the moment. Mainly because he's going to do a MFZ podcast along with two other people called "The Transit Gate". I look forward to hearing more from him in the future.