Jim's Tools started as a personal collection of mostly small and uninteresting, but useful LISP routines for AutoCAD. I would offer them to my co-workers to help them out. Pretty soon they were asking for me to set up "Jim's Tools" on their computers at home, or their friend's computer at another company.
The two most popular ones are EC Pro and XLayer. I have added them here to help people stay up to date and informed.
I may share some of the other programs I have developed over time if I feel they are tested well enough and useful enough to others. If you've used one of my "tools" and think it would be a good candidate for public release, just drop me a line and I will consider it!