Servers

daemon.nethack.at
Includes scoreboard and dynamic game survey.
http://daemon.nethack.at/

/dev/null/nethack
Hosts yearly tournament.
http://nethack.devnull.net/

nethack.alt.org
Overview, player and server statistics, and email support lists.
http://alt.org/nethack/

Nostalgia Public NetHack Server
Scoreboard and game playbacks. Offers Java client.
http://nostalgia.suroot.com