This infograph by PointRoll illustrates the history of online advertising.
90% of technology startups fail. This inforgraphic from Allmand Law looks at the successes and failures of well-known tech startups.
This infographic by Reputation Observer looks at the history of cloning an online business idea.
Citizen Brando compiled this infographic that traces the origin of the social network to CompuServe in the 1960s and Bulletin Board Systems in the 1970s.