** Damage types ***

Guristas - Kinetic / Thermal
Serpentis - Thermal / Kinetic
Blood Raider - Thermal / EM
Sansha's Nation - EM / Thermal
Angel Cartel - Kinetic / Explosive / Thermal
Minmatar Fleet - Thermal / Explosive
Amarr Navy - EM / Thermal

***Hardeners to use***

Angel - All
Amarr Navy - EM/Thermal
Blood - EM/Thermal
Caldary navy - Kinetic/Thermal
Gurista, Mordus, Gallente - Kinetic/Thermal
Khanid - EM/Thermal
Mercenary - EM/Thermal/Kinetik (missiles)
Mordus - Kinetic/thermal
Odamian - Kin/therm
Rogue Pirate - EM/Explosive/Kinetic
Sansha - EM/Thermal
Serpentis - Kinetic/Thermal
Zazzmatazz - all

Gravimetric Signatures: hidden belts
Ladar Signatures: Gas Cloud sites
Magnetometric Signatures: ancient Archaeological and Salvage sites.
Radar Signatures: typically pirate faction mainframes, where valuable data may be hacked.
Unknown Signatures: WH, DED-Rated Complexes, Unrated Complexes