A discussion on how Ruby developers (or any tech-minded people, really) can use their skills to help others - from other developers, to those in distant corners of the world.
Slides aren't so useful with regards to content though.
32. “Every time you buy an item
recommended by Delicious
Library 2, Delicious Monster
donates the revenue sharing
from Amazon’s affiliates
program to various charities
around the world.”
delicious-monster.com