FogBugz
Used by 2 peoplemanuscript.com ↗
“Not only do I use Safari for web browsing, but also for handling customer support with FogBugz.”
Daniel Jalkut Interview, Software developer (MarsEdit, FastScripts), podcaster · via Uses This 
“I track my bugs on FogBugz, which also has great services for students and researchers.”
Jessica Hammer Interview, Game psychologist, designer · via Uses This