Robotech RPG - Mike Perry
Based on the Palladium Books RPG system. Great resource for e-mail campaigns.

REF/Mechanoid War
A play-by-email campaign set on the SDF-3 after its disappearance.

Operation Mirror Image
Features background, mecha, and ships for a Rifts-crossover campaign set after the television series.

Roleplaying Macross
Notes on adapting Macross II rules for use with games based on the anime series Macross Plus and Macross 7.

New Macross Defense Institute
Statistics for the mecha of Robotech and Macross for the Palladium mega-damage system.