Lightning Aircraft Engines
Designs, develops and manufactures opposed two-cycle engines and parts for the unmanned aerial vehicle industry. USA.
http://www.lightningaircraft.com

Green Car Congress: Compressed Air Engines
News regarding compressed air or "air-hybrid" vehicle engines which recapture and store energy as compressed air.
http://www.greencarcongress.com/compressed_air_engines/index.html

Briggs & Stratton
Briggs & Stratton
http://www.briggsandstratton.com/

3D Engines List
The 3D Engines List tries to provide an overview of software 3D engines for realtime graphics and VR on various platforms. Each engine is reviewed with list of features, contact information (email, link to homepage) and links to download a demo or the source. Mac engines are included.
http://cg.cs.tu-berlin.de/~ki/engines.html

GE Distributed Power
GE Infrastructure has been serving the power industry for more than a century. Since we installed our first steam turbine in 1901, our installed based of steam and gas turbines for power generation has grown to more than 10,000 units, representing more than 875 gigawatts (GW) of installed capacity in more than 120 countries. With a growing installed base of more than 6,500 wind turbines, 3,600 hydro turbines and 4,000 MW renewable, special and natural gas engines, our installed capacity of renewable energy exceeds 167,000 MW.
http://www.gepower.com/

Iveco Group
International manufacturer and supplier of commercial trucks, parts and diesel engines. Includes dealer locator, used vehicle search and links to services.
http://www.iveco.com/

AirIQ
Solution integrates GPS, wireless communication, computing intelligence and digitized mapping providing services such as vehicle locating and vehicle tracking to commercial vehicle fleets.
http://www.airiq.com

NERVA
The Nuclear Engines for Rocket Vehicle Applications project. Started by the Atomic Energy Commission and NASA in 1961 and cancelled in 1971 due to radiation worries and a lack of interest from NASA.
http://www.ans.neep.wisc.edu/~ans/point_source/AEI/sep95/rocket_programs.html

Alt Search Engines
Charles Knight maintains a list of the top 100 alternative and niche search engines. Includes news, reviews and debates on search engines.
http://altsearchengines.com/

Low temperature and Solar Stirling engines
Physikalische Demonstrations Modelle, alternative Energie, Sonnenenergie, Solar Spielzeug, Energiewandler, Stirlingmotor, Memory Metall, Dampfmaschine, Brennstoffzelle, Elektrolyseur, Photovoltaik, Solarzellen
http://www.exergia.de/