1) Social networking service 
Erodr (stylized erodr) is a college student-focused, online social networking service. == History == The first prototypes were created in August 2012 by founder Drew Halliday while he was a student at the University of Missouri, and the app was launched on the App Store in November. As of October 2013, Erodr was open to users at 15 colleges. At th...