Lewis, Peter H. "Sears, I.B.M. Near a Deal To Sell Prodigy". The New York Times, May 8, 1996. Accessed November 13, 2007. "A person familiar with the agreement said I.B.M. and Sears had agreed to accept as little as $100 million for Prodigy, in effect writing off more than $1 billion they had invested in the online venture during the last decade."
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Shapiro, Eben. "THE MEDIA BUSINESS; New Features Are Planned By Prodigy", The New York Times, September 6, 1990 (The French Minitel had one million, but was used mainly from passive low-cost ASCII/Teletex terminals). Accessed February 4, 2008. "Prodigy has become the second-largest and fastest-growing computer-information company since it was introduced in 1988. It has 465,000 subscribers, compared with more than 600,000 for Compuserve Information Services, a unit of H & R Block Inc."