The Weather Project by Olafur Eliasson, at the Tate Modern, London.
See also Slower.net. And 10.9.2002, 8.17.2001.

Mirror shot.

Speaking of Slower.net, Eliot has posted some thoughts on the economic viability of photoblogging, or lack thereof. Give him some feedback.

These are people who are laying the whole thing open for us to see – where they've been, how they're seeing, whether they're trying something new today – the process really. And that's why a good photo blog has value over and above the value of individual pictures.