Diggnation is a podcast by Kevin Rose and Alex Albrecht, both recently of The Screen Savers on TechTV. They are much better than the current folks on AOTS (which used to be TSS). The link I’ve given you is like geek stuff squared, because “DiggNation” is the podcast Kevin and Alex are doing about digg.com, a social bookmarking/technews site. I used to have a digg widget on Konfabulator before my free trial ran out (I am so ready for my new Mac laptop with Tiger and Dashboard!).
Anyway. This is nearly as geeky as it gets and yet still involves people interacting (that is, beyond this stage, geekiness becomes individual people alone in their homes). Good stuff.