Pretty cool. Taking the 4-8-15-16-23-42 sequence from the TV show Lost and seeing what it gets you geographically...
(also has a couple of interesting links)
Now that I've finally caught up on the past episodes/season, I'm not as concerned about avoiding all references to the show. I still don't want to read any speculation or yammerings by net dorks. Thankfully, this site doesn't seem to have anything like that.