Marty:
I understand entirely your dilemna....I, too, have been a software developer for more decades than I care to remember. As I tell my students (when I teach at the local college) I don't play with computers. I don't have fun with computers. I don't "kick back" with computers. Computers are NOT my hobby. And I've stayed up all night working on a software problem once, and ONLY once, in my entire life.
Computers, networks, software, etc, are my business, not my life.
Do I have a LinkedIn account? Yup, but only because someone asked me to create one. It's rather sparse, when you look at it.
Do I have a twitter account? Yup, but only because I wanted to follow Massimino on his Hubble repair mission.
Me on twitter: myrphey