Useful Links

www.ntp.org

Home of the Network Time Protocol. Conducts research and development in NTP and also produces the official reference implementation and documentation of NTP.

en.wikipedia.org/wiki/Network_Time_Protocol

Wikipedia article about NTP. Usefull information about the Network Time Protocol and the synchronization of computers.

http://datatracker.ietf.org/wg/ntp/charter/

IETF NTP working group. Documents the standardization status of NTPv4.

http://www.eecis.udel.edu/~mills/ntp.html

Dr David L Mills NTP project page - the founder of the NTP protocol.

http://www.ijs.si/time/

Guidelines for setting up a good NTP time server for synchronization of computer clocks

NTP Servers

www.timetools.co.uk

TimeTools NTP Server appliances and time synchronisation solutions.