Good to see the cutover to TCP/IP from NCP on January 2, 1983 being celebrated. The TCP/IP Digest moderated by Mike Muuss contained an interesting documentation of the problems and efforts that led up to and followed the cutover. I have a draft paper on the digest at: http://www.columbia.edu/~rh120/other/tcpdigest_paper.txt The paper is From the ARPANET to the Internet A Study of the ARPANET TCP/IP Digest and of the Role of Online Communication in the Transition from the ARPANET to the Internet by Ronda Hauben rh120@columbia.edu Cheers Ronda rh120@columbia.edu