Commercial Internet Exchange (CIX) Association, Inc. formed by General Atomics (CERFnet), Performance Systems International, Inc. (PSInet), and UUNET Technologies, Inc. (AlterNet), as NSF lifts restrictions on the business use of the Net (March) (:glg:) Wide Area Information Servers (WAIS), invented by Brewster Kahle, released by Thinking Machines Corporation Gopher introduced by Paul Lindner and Mark P.