XKCD Wiki:Site support

Keep your blood money, you dirty, dirty person. ^{[That's what she said!]}

But if you really want to donate, send it to:

xkcd

c/o blagathon-for-kidz

3215 North Wisconsin Hwy

Singapore, MN 95874-0012

New Zealand, Russia

Earth

Ontario, Canada

The following payment media are accepted:

Algorithms
Axioms
Cash or Check (Cheque)
Chocolate congruency
The fundamental theorem of calculus
More cash
The reason to why the Grinch stole the integer solutions to Randall's Diophantine equation
Limerick
Rick Astley in a can
Binary blobs or core dumps
Your private key
1337 points
Two large, distinct prime numbers 'p' and 'q' such that a velociraptor cannot factor (p - 1)(q - 1) within a timespan of a footpath escape