WPA and a rare Post Office treat.

I just love the way these mural panels make me feel–all moody and unsettled. Had to go to the Rincon Annex and capture the whole set this weekend, something I've wanted to do for 30 years ever since I first clapped eyes on 'em. They don't disappoint. The harsh reality of emigrating West through a lens tinged with yellowed filters of the Depression, it's a potent brew. The artist was Anton Refregier, a Russian with a visceral touch for edge and detail yet the faces seem void of expression and emotion, so matter-of-fact. Unnerving.

24th Street Mural-still best in class

Best history of Americas and deft brushwork in the street if you ask me. This wall (continues round the corner too) has held up well over the years and the chance to snap it again without the usual traffic had to be done. Added exposure of the Olmec monolithic sculptures show recently at the DeYoung really enlivens the richly realized images on offer.

Social Networking hits the bike trail

Seen on the Sunday Vehicle-Free Valencia Street Happening - looks like up to 6 people at a round table and riding to who knows where? Anyway, who cares when it looks so much fun. I can see Twitter execs jumping on this bandwagon in no time flat. I'd even throw in a coffee bar.