I subscribe to a lot of photography blogs, and have added and deleted many more from my list over the years. I've come to realize that there are only a very few from which I get a charge of anticipation when I see a new posting. Two I find especially appealing, because their authors combine deep knowledge of photographic aesthetics, culture, practice, and technology with distinctive personalities that come through vividly in their writing. I also like that they post frequently, so I get a fix almost every day:
Almost as high on my list is Michael Reichmann: The Luminous Landscape
Reichmann is famous for his reviews of ultra-expensive cameras, but he's also given good coverage of the new generation of high-end, small-sensor cameras, which is where my interests lie. He's an important on-line educator. And the photos he posts are very close to my own aesthetic preferences.
George Barr: Behind the Lens
Barr seldom lets his personality shine through, but he writes as instructively and cogently as anyone about the aesthetics of photography, and illustrates with his quiet but appealing photos.
Doug Plummer: Dispatches
Plummer's personality - his challenges, his angst, and his joys - come through vividly in his blog. His description of his professional evolution to including video, his sharing of experiences in photographing for higher education, and his enthusiasm for folk dancing combine to make me feel like I'd really like to talk with this guy at a dinner party. I only wish he'd post more often.
Gianni Galassi: Photographia
Entirely different from the others: no personality, hardly any words. Just gorgeous geometries, whittled down to their essence. The Ellsworth Kelly of photography.