There are other good ways to donate if one wishes to avoid Amazon- the auctions, via Paypal, and direct donation to Max are some of the options listed in the most recent thread on the subject:
"mudcat.org cannot afford to continue... "

I bookmarked the Amazon links, but it would be good to have them visible, as Noreen and bradfordian have said.

Here they are from Max:
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Subject: RE: mudcat.org cannot afford to continue...
From: Max - PM
Date: 09 Dec 12 - 02:38 AM

Just use these URL's and we get 7%.

    amazon.mudcat.org
or amazonUK.mudcat.org
or amazonFR.mudcat.org
or amazonCA.mudcat.org