All the content, software, etc., that I publish here is free for you to read and/or use. Nevertheless, if anything here turned out to be especially valuable for you, and if you can afford to do so, I appreciate any donations you can send my way. Besides helping me keep this site free of ad pollution, they also help me to dedicate more time and effort to the content I put in it.

Thank you for your generosity!


While I am not a fan of making Jeff Bezos’ pockets any deeper than what they already are, the simplest way to donate is via an Amazon Gift Card (send the electronic version to It does have the advantages of being quick, and of allowing sending small amounts.

I will add other methods here shortly (Paypal is next.)