International Gas Turbine Institute
- Dedicated to the exchange and development of information to improve the design, manufacture, operation and application of all types of gas turbines and related equipment.
- http://asme.org/igti/

Energy Conversion - The Ebook
- Online mechanical engineering textbook. Covers gas turbines, turbofans, combined cycles, engines, nuclear power plant cycles, renewable energy systems and related topics.
- http://www.personal.utulsa.edu/~kenneth-weston