In the Summer of 1996, David Gardiner, a former Ph.D. student of John Riedl, introduced Riedl to Steven Snyder. Snyder had been an early employee at Microsoft, but had left Microsoft to come to Minnesota to do a Ph.D. in Psychology. He realized the commercial potential of collaborative filtering, and encouraged the team to found a company in April 1996. By June, Gardiner, Snyder, Miller, Riedl, and Konstan incorporated their company, and by July had their first round of funding, from Hummer Winblad Venture Partners. Net Perceptions went on to be one of the leading companies in personalization during the Internet boom of the late 1990s, went public, had 400 employees and stock at $60 per share, and acquired marketing services startup KD1 for $126 million. Then over time the stock lost 95 percent of its value, and it laid off most employees. The company stayed in business until 2004.
Move to Connecticut
- "Fine Tuning the Social Web: John Riedl". 14 March 2017.
- "Remembering John Riedl, Recommender Systems Pioneer".
- "Minnesota in the .Com Age" (PDF). Minnesota Public Radio. 1999. Retrieved 2009-12-30.
- Dragan, Richard (January 2001), "Net Perceptions for E-commerce 6.0", PC Magazine
- Newswires, Dow Jones (17 January 2000). "Net Perceptions to Buy KD1 for $126.4 Million in Stock". Wall Street Journal.
- "Firms honored at e-commerce awards". MIT. May 19, 1999.