Our site is fairly new - I've been working on it a whole lot lately (trying to get ready for recruitment). I only know basic html for now (but in the fall, I'll be taking a web development class, so hopefully I can spruce it up then). I know our site isn't the best in the world, but I got some good ideas from checking out other sites.
Ours is
http://axid.spsu.edu
Two other AWESOME Alpah Xi Delta sites are
http://www.fiu.edu/~azd/ and
http://www.texasaxid.org/