If you're a Lost fan at all, or if you're a fan of the band Driveshaft, do check out the website created by my insane friend marie siu and an equally insane friend of hers, driveshaftband.com.
From the beginning, they designed the site with complete straightforwardness, as though Charlie-from-Lost's band Driveshaft were real and he were a real rock star who'd gone missing in a real airplane accident. I love the idea of a site reflecting events around the TV show, but never seen on the show - just in the same universe, kind of, but as consistent as they could make it. As events unfolded in the TV series, they went back and recreated backstory to match. Which made things quite hectic for them sometimes! Shannon even got to meet hobbit-guy once and gave him a mix cd she'd made, and the site got a bit of national attention.
Particularly hilarious are guestbook entries insisting "it's just a TV show! What's the matter with you FREEKS!!!11".
Anyhow, due to recent events, the site has seen its last update. But what a brilliant, cracked, twisted, and totally mad idea.