It seems to be dedicated to comparing Linux distributions. Last updated today.
[link|http://www.distrowatch.com/major.htm|[link|http://www.distrowatch.com/major.htm|http://www.distrowatch.com/major.htm]] is a big table comparing the "major" distributions. Nav4.x doesn't like it (no surprise), but Mozilla 0.9.4 displays it properly.
Cheers,
Scott.