There's also a map available for the snapshot server, albeit it's not dynamic of course, since the vanilla servers can't hold bukkit. But at least you can use the Overviewer:
The reason the lag was heavy last 24h was due to the fact I am resetting the server machine at the moment. The server had to relocate onto another machine which clearly couldn't handle it for some of reason. I have now relocated the server again to another machine to make the game playable again until we finally can get back to our original, then updated hardware.
EDIT: WERE FULL ATM THESE DAYS SINCE WE ARE ALREADY 15-20 DIFFERENT PPL PLAYING REGULARLY AND ARE CURRENTLY UPDATING HARDWARE / IF YOU REALLY DESPERATELY WANNA JOIN LEAVE AN APPLICATION POST.