A1 - Engine Repair
http://www.aera.org
http://www.automotiverebuilder.com/
http://auto.howstuffworks.com/engine.htm
http://www.valvoline-technology.com/
http://www.gates.com/education
http://www.narsa.org/

A2 - Automatic Transmission/Transaxle
http://www.atraonline.com/
http://www.gearsmagazine.com/
http://www.transonline.com
http://auto.howstuffworks.com/automatic-transmission.htm

A3 - Manual Drive Train and Axles
http://transbuilder.com/
http://www.howstuffworks.com/transmission.htm
http://www.4lo.com/
http://www.powertransmission.com/
http://www.differentials.com/

A4 - Suspension and Steering
http://www.brakeandfrontend.com/
http://www.monroe.com/

A5 - Brakes
http://auto.howstuffworks.com/brake.htm
http://auto.howstuffworks.com/anti-lock-brake.htm
http://www.brakeandfrontend.com/

A6 - Electrical/Electronics
http://us.fluke.com/usen/products/category.htm?category=MD_AUTO(FlukeProducts)&trck=autotools
http://www.autoshop101.com/

A7 - Heating and Air Conditioning
http://www.epa.gov/Ozone/index.html
http://www.aircondition.com/
http://www.macsw.org/

A8 - Engine Performance
http://www.troublecodes.net
http://www.obdii.com/
http://www.lindertech.com/index.html
http://www.borgwarnerbrand.com/

Fundamentals/General Automotive
http://www.valvoline-technology.com/
http://www.hanford.gov/fire/safety/extingrs.htm
http://www.howstuffworks.com/
http://www.ccar-greenlink.org/
http://www.iatn.net
http://www.familycar.com/
http://library.thinkquest.org/19199/nojava/index.html
http://www.carcare.org