Yes, I think example:
#76 can work. In fact, I can imagine using it in navigation, and using example
#68 elsewhere (in brochures and on business cards, for example). I like your other concepts, especially example:
#74. I wonder if you could experiment with the font a bit - all caps seems a bit full-on. Perhaps "geekSALT" (obviously the A need to be capitalised for the concept to work).