This is pretty cool. Hawty McBloggy blogged about a site that generates some spawn time stats (Halo 3 - Time Wasted Respawning). The script is interesting. But more interesting was that it makes use of a Halo API.
Halo 3 Badge
I thought this was pretty cool, a number of flash or image badges from Battle Record that uses your Halo 3 service record. Check out one of the images below: