Digg is not killing this site, actually many stories that are here have shown up on digg, which actually maybe part of your point. Thats OK this place allows a select few to share info with friends. I was a relativley early adopter of digg and loved it, however recently the quality of stores that make the front page has gone way done and i find myself reading digg less. I actually see this time as better for our little site to help the creme of the crop stories to be seen and read here.

As for submitting to digg, hmmmmm digg etiquette says you do not promote yourself on digg, however with the recent flood of silliness on digg maybe the rules have changed.