Two newbies, both excellent:
Powerpopulist. Ekim is an occasional commenter here, but a frequent lurker. He's got a terrific melodic sense and is one of the kindest, most generous people I have ever met. Did I mention that he has a kickass music collection? Well, now he has a blog too. Woohoo! It still has that New Blog smell.
Seattle Powerpop. This, like the New York Powerpop page, is more scene-focused, but as thwe scene is, you know, Seattle, it's a really interesting and active pop community. Seatle Powerpop catalogs the action.