sentences:  There, he and others developed the WAIS system, the first Internet distributed search and document retrieval system, a precursor to the World Wide Web.In 1992, he co-founded, with Bruce Gilliat, WAIS, Inc. (sold to AOL in 1995 for $15 million), and, in 1996, Alexa Internet (sold to Amazon.com in 1999).At the same time as he started Alexa, he founded the Internet Archive, which he continues to direct.