This week Digg posted that they've had over 14 Million stories posted to their site after only 5 years.

Slashdot is probably talking about front-page stories and not submissions, but, if we consider the editorial process, 100,000 is definitely high.

P.S. One of my most exciting geek-memories as a younger man was having one of my submissions hit the front-page of Slashdot.