You remember last year, when Drivethrurpg held a sale? Almost every rpg company flagged up one or two of their books, and for a donation to the Haitan Earthquake fund you got them all?
They're doing it again. All proceeds to Doctors Without Borders.
$20 gets you $700+ worth of roleplaying books
$10 gets you $100+ worth of comics.
That's got to be good.
LINK