Unlike Dr.Koop.com, which went from an IPO darling to out of business two years later, WebMD (WBMD) has survived by diversifying its income sources. While 2012 did not bode well for the company, it has since turned around. It revamped its advertising strategies and significantly cut costs. The stock is up a staggering 144% in 2013. WebMD is expected to turn a profit this year with earnings forecast to rise 131% to 60 cents a share in 2014.