GUIDE was formed in 1956; it was incorporated in 1970 as a non-profit organization under the name of GUIDE International Corporation. At its peak GUIDE had a membership of around 2,000 companies and institutions. As of 1990, GUIDE was the largest IBM users' group with 2850 members. Its membership included fifty percent of the Fortune 1000 companies.
"GUIDE's principal purposes are to contribute to the improvement of data processing products and services and to provide a forum for the development, exchange and dissemination of information concerning large data processing equipment and systems." "GUIDE's principal activity is the sponsorship of week-long conferences held three times each year." </ref>
In the US GUIDE ceased operation in September 1999. Although the groups did not merge, many of GUIDE's activities and projects were taken over by SHARE, and GUIDE suggested to its members that they join SHARE. In August 2000, SHARE took over the guide.org domain name.
- Norberg, Arthur L. "Recent Monograph Publications and Research in CBI Collections" (PDF). Newsletter v.27 no.1. Charles Babbage Institute. Retrieved May 22, 2013.
- "IBM User Groups in Europe". Retrieved May 23, 2013.
- Panepinto, Joe (Jan 29, 1990). "Users groups gain ground by bending Big Blue's ear". Network World. Retrieved June 13, 2018.
- LaPlante, Alice (Nov 24, 1986). "IBM User Group is World's Most Influential". Infoworld. Retrieved June 13, 2018.
- Guide Intern. Corp. v. United States, 948 F. 2d 360 (7th Cir. 1991). Brief of Appellant at 3.
- Index of GUIDE International Records, 1970-1992 at Charles Babbage Institute, University of Minnesota.
- GUIDE SHARE EUROPE
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