Norbert's RoboRally Board Editor - Includes graphical editor utility for creating boards and element graphic sets. - http://www.roborally-editor.net/
Sieb's Roborally Graphics - Contains board elements, including conveyors and crushers. - http://home.hubris.net/sieb/Roborally.html
Warp Zone: RoboRally - Offers boards, including race tracks, and standard, expansion set, and custom board elements. - http://www.randomdice.com/games/rr.asp
3D RoboRally Game Boards - Images of 3D boards created by Patricia Masuda and Lou Anders. - http://roborally.htmlplanet.com/
Ry4an's RoboRally Archive - Includes custom element quick reference sheet compiler, board design techniques using the Gimp, and boards. - http://roblivion.com/