Wikis and Twikis
Collaboration, documentation, social and more
Wikis (pronounced wee-kee) owe their existence to Ward Cunningham. He first thought of a wiki technology in the 1980. You can read an interview with Ward Cunningham here. Cunningham's Wiki Wiki site was the first wiki site and continues to this day.
Wiki Wiki Web This website and the software it runs on were created by Ward Cunningham for the Portland Pattern Repository. It is home to an Informal History Of Programming Ideas as well as a large volume of material recording related discourses and collaboration between its readers.