www.aircraftenginedesign.com
www.psao.grc.nasa.gov
http://msfc.nasa.gov Marshall Space Flight Center
http://jpl.nasa.gov Jet Propulsion Lab
www.cfdonline.org Online repository on CFD
Universities with research into propulsion
www.uah.edu University of Alabama at Huntsville
www.uah.edu/research/PRC/ Propulsion Research Center
www.psu.edu Propulsion Engineering Research Center at Penn State university
www.osu.edu Gas Turbine Research Lab
www.mit.edu MIT
www.caltech.edu California Institute of tech.
www.gatech.edu Georgia Institute of Technology
www.drdo.org India's Defense Research and Development Organization
www.nasa.gov NASA home
www.isro.org Indian Space Research Organization
www.osmania.ac.in My University
Guitar tablature
www.olga.com Online guitar archives.