 The comments that appeared in various internet chat rooms in November 2006 when his obituary appeared attested to other people's recognition that Lexis and Nexis were transformative technological applications.Law librarians were particularly outspoken about how these innovations had changed research.It is estimated by Dr. David Evans of Carnegie Mellon that up to 1991, only 100,000 people used search engines regularly and a significant portion of those were LexisNexis users.