"The original log book detailing UCLA professor Leonard Kleinrock and his team using the Interface Message Processor (IMP), is seen at 3420 Boelter Hall in UCLA, May 3, 2011. UCLA professor Leonard Kleinrock and his team used the Interface Message Processor, IMP, the packet-switching node used to interconnect participant networks to the ARPANET to send the first message, the letters LO to Standford Research Institute on October 29, 1969. The UCLA ..."
npg sent this to me. It is on Yahoo News.