We have DynMap now, an online map of the server!
You may find it here
If you want to be visible on Dynmap, type /dynmap show. If you want to talk from the web, click the "Login Required" button in the lower-left hand corner of the screen. Finally, if you move your mouse cursor to the right-hand side of the screen, you can view other worlds and even isometric views (this screenshot.) Enjoy, and let me know if you find any issues!