Hypertext Editing System and File Retrieval and Editing System with Swarthmore friend Andries van Dam's group; c. 1967-1969), Bell Labs (hypertext-related defense research; 1968-1969), CBS Laboratories ("writing and photographing interactive slide shows for their AVS-10 instructional device"; 1968-1969), the University of Illinois at Chicago (an interdisciplinary staff position; 1973-1976) and Swarthmore College (visiting lecturer in computing; 1977). Nelson also conducted research and development under the auspices of the Nelson Organization (founder and president; 1968-1972) and the Computopia Corporation (co-founder; 1977-1978). Clients of the former firm included IBM, Brown University, Western Electric, the University of California, the Jewish Museum, the Fretheim Chartering Corporation and the Deering-Milliken Research Corporation. He has alleged that the Nelson Organization was envisaged as a clandestine funding conduit for the Central Intelligence Agency, which expressed interest in Project Xanadu at an early juncture; however, the promised funds failed to materialize after several benchmarks were met. From 1980 to 1981, he was the editor of Creative Computing. At the behest of Xanadu developers Mark S. Miller and Stuart Greene, Nelson joined San Antonio, Texas-based Datapoint as chief software designer (1981–1982), remaining with the company as a media specialist and technical writer until its Asher Edelman-driven restructuring in 1984. Following several San Antonio-based consultancies and the acquisition of Xanadu technology by Autodesk in 1988, he continued working on the project as a non-managerial Distinguished Fellow in the San Francisco Bay Area until the divestiture of the Xanadu Operating Group in 1992–1993. After holding visiting professorships in media and information science at Hokkaido University (1995-1996), Keio University (1996-2002), the University of Southampton and the University of Nottingham, he was a fellow (2004–2006) and visiting fellow (2006–2008) of the Oxford Internet Institute in conjunction with Wadham College, Oxford. More recently, he has taught classes at Chapman University and the University of California, Santa Cruz. The Xanadu project itself failed to flourish, for a variety of reasons which are disputed. Journalist Gary Wolf published an unflattering history of Nelson and his project in the June 1995 issue of Wired, calling it "the longest-running vaporware project in the history of computing". On his own website, Nelson expressed his disgust with the criticisms, referring to Wolf as "Gory Jackal", and threatened to sue him. He also outlined his objections in a letter to Wired, and released a detailed rebuttal of the article. As early as 1972, a demonstration iteration developed by Cal Daniels failed