Agorism is a libertarian social philosophy that advocates creating a society in which all relations between people are voluntary exchanges by means of counter-economics, thus engaging with aspects of peaceful revolution. It was first proposed by libertarian philosopher Samuel Edward Konkin III at two conferences, CounterCon I in October 1974 and CounterCon II in May 1975, both conferences organized by J. Neil Schulman.
A wiki including a FAQ and various other resources
Overview of Konkin's life and his two main contributions: agorism and the counter-economy
Biographical essay, including examination of Konkin's ideas on the Counter-Economy; transcript of "The Libertarian Tradition" podcast of 20 July 2010; includes photo of Konkin with author
Charles "Rad Geek" Johnson chats it up with MHD about Agorism, by Charles W. Johnson, The Motorhome Diaries
Johnson explains agorism and counter-economics, including an example relating to intellectual property (at 1:20)
The introductory paragraph uses material from the Wikipedia article "Agorism" as of 28 Oct 2018, which is released under the Creative Commons Attribution-Share-Alike License 3.0.