WebMD is an American corporation known primarily as an online publisher of news and information pertaining to human health and well-being. The site includes information pertaining to drugs. It is one of the top healthcare websites by unique visitors. It was founded in 1998 by internet entrepreneur Jeff Arnold. In early 1999 it was part of a three way merger with Sapient Health Network and Direct Medical Knowledge. SHN began in Portland, OR in 1996 by Jim Kean, Bill Kelly, and Kris Nybakken, who worked together at a CD-ROM publishing firm, Creative Multimedia. Later in 1999, WebMD merged with Healtheon, founded by Netscape Communications founder Jim Clark.