Propulsion
Links
Breakthrough Propulsion Physics Program
http://www.grc.nasa.gov/WWW/bpp/
Experiments and theories regarding the coupling of gravity and electromagnetism, the quantum vacuum, hyperfast travel, and superluminal quantum effects.
NASA Jet Propulsion Laboratory Technical Reports Server (JPLTRS) v2.0
http://techreports.jpl.nasa.gov/
enter 'propulsion' into search and get 100+ reports
NASA Stennis Space Center
Where NASA tests rocket engines.