I'm not very good at telling people about my interests, because they seem so obvious to me. I'm much better at talking about myself when someone else is asking me questions. So I've made a little program which will attempt to answer your questions 24 hours a day.
However, I have started to build a collection of articles on various subjects that I have researched. You can find them in my collection "Dr.J's Universe", also on this same website.
If you think you might have some past connection with me, here is a link to some places and events that I have been in my life.