This is a great freaking idea that I wish I had stolen — my friend Bill Simmon at Candleblog is asking all of his readers to send photos of themselves that he can publish in a Candleblog collage. I sent in my photo already. My snapshot from last year shows me in a helmet at the Higgins Armory in Worcester, MA.
I've also really enjoyed Andrew Sullivan's The View From Your Window series. I like seeing the offline world reflected online. I'll probably try something like this myself when I have a little more time and energy, possibly this summer.