I keep ours as up-to-date as possible. You'll see that it's lacking a bit in the graphics department - I had to forgo style for substance. Time constraints are a bitch.
http://www.chops.org
Another good one is Omicron Zeta's site:
http://www.iswza.org
For a fairly comprehensive and somewhat up-to-date listing of chapter Web sites, visit
http://www.chops.org/lcaintl/zetas.php.