IED Project

Events

First BBS

1978

Classmates.com

1995

SixDegrees

1997

Friendster

2002

LinkedIn

2003

MySpace

2003

Facebook (available to only Harvard Students)

2004

Youtube

2005

Facebook (open to public)

2006

Twitter

2006

Google+

2007

Foursquare

2009

Instagram

2010

Snapchat

2010