Open Sources 2.0

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{{Primary sources|date=November 2010}}{{Portal|Free and open-source software}}{{Infobox book

| pub_date = October 2005

| publisher = O'Reilly Media

| editor = Chris DiBona, Mark Stone and Danese Cooper

| image = File:Open_Sources_2.0.jpg

}}

{{Use dmy dates|date=March 2020}}

Open Sources 2.0 is a book published by O'Reilly Media. Following on the popularity of Open Sources: Voices from the Open Source Revolution, it is a second anthology of essays written by luminaries of the open source and free software movements. The essays explore open source's impact on the software industry and reveal how open-source concepts are infiltrating other areas of commerce and society.

The book was edited by Chris DiBona, Mark Stone and Danese Cooper. The essays contained were written by Alolita Sharma, Andrew Hessel, Ben Laurie, Boon-Lock Yeo, Bruno Souza, Chris DiBona, Danese Cooper, Doc Searls, Eugene Eric Kim, Gregorio Robles, Ian Murdock, Jeff Bates, Jeremy Allison, Jesus M. Gonzalez-Barahona, Kim Polese, Larry Sanger, Louisa Liu, Mark Stone, Matthew N. Asay, Michael Olson, Mitchell Baker, Pamela Jones, Robert Adkins, Russ Nelson, Sonali K. Shah, Stephen R. Walli, Steven Weber, Sunil Saxena, Tim O'Reilly, and Wendy Seltzer.

The first edition was published in October 2005.

The book was published under the Creative Commons CC BY-NC-ND 2.5 license.{{cite book | title = Open Sources 2.0 | date = 26 June 2007 | isbn = 978-0-596-00802-4 | url = https://archive.org/details/opensources20con0000unse | publisher = O'Reilly Media | accessdate = 3 October 2017 | url-status = | url-access = registration }}