My reply was getting too long so I decided to turn this into a meditation. What links have helped inspire you, teach you, and made you a better programmer? Please try to categorize the links as best you can (I need to do some housekeeping myself).
Ideas to make you think (offsite)
Links on algorithms (offsite)
Recommended Reading (offsite)
Homenodes with links to checkout (Homenode Surfing)
Nodes others wrote (Selected Best Nodes):
Nodes I wrote:
Cheers - L~R