ITR's Turbo Coding Home Page - University of South Australia's Turbo Coding Home Page. - http://www.itr.unisa.edu.au/~steven/turbo/
Turbo Codes - Maintained by the University of Virginia. Includes definition of the code and the future potential use. Page has resource links and bibliography. - http://www.csee.wvu.edu/~mvalenti/turbo.html
JPL Turbo Codes Home Page - Communications Systems and Research Section, Information Processing Group. Overview, papers, products and resources. - http://www331.jpl.nasa.gov/public/JPLtcodes.html
Project Turbo Code - Information Engineering, the Chinese University of Hong Kong. - http://faraday.ee.emu.edu.tr/eaince/ee562/Public/sova.htm
Turbo/MAP Codec - A flexible hardware Turbo/MAP Codec. Detailed explanation of hardware given. - http://www.itr.unisa.edu.au/~steven/turbo/codec/
Turbo Code Sites - Listed by Aaron Gulliver. - http://www.ece.uvic.ca/~agullive/turbo.html