Ladar - Minmatar
Gravimetric - Caldari
Radar - Amar
NPC Name Damage Type to Deal Damage Dealt
Angel Cartel Explosive Electromagnetic/Thermal
Blood Raiders Electromagnetic/Thermal Electromagnetic/Thermal
Caldary Navy Kinetic Thermal/Kinetic
EoM Kinetic Thermal/Kinetic
Guristas Kinetic Thermal/Kinetic (primary)
Mercenary Thermal ALL
Mordu's Legion Thermal/Kinetic Thermal/Kinetic (primary)
Sansha Electromagnetic/Thermal Electromagnetic/Thermal
Serpentis Thermal/Kinetic Thermal/Kinetic
The Syndicate Kinetic/Thermal

Helpful places:
http://www.eve-academy.eu/kainscionofbalance/Hints.html
http://eveinfo.com/missions/
http://eve-survival.org/
http://eve-agents.com/
http://www.eve-central.com/home/market.html
http://wiki.eveonline.com/en/wiki/EFT