Thomas Hawk is the CEO of Zooomr (a competitor of Flickr, which I’ve been meaning to spend more time with), but above that, he’s a phenomenal photographer. I discovered him through Robert Scoble’s photowalking sessions and dropped his feed into my reader. He usually posts 5 pictures to Flickr everyday. His site is definitely a great place to see amazing pictures of San Francisco, but also to learn about shooting at night, inside in the dark, and he also has some interesting commentary on life behind the lens. Here are a few pictures of San Francisco from his collection, but I highly recommend you check out his site. Please click the photos below to see them in their full size.