[walterbell]

You can donate to several projects via Software for the Public Interest, including PostgreSQL, Debian, ArchLinux, OpenEmbedded, LibreOffice, Jenkins, FFmpeg and OpenWrt.

https://www.spi-inc.org/projects/

> SPI acts as a fiscal sponsor to many free and open source projects ... we encourage programmers to use the GNU General Public License or other licenses that allow free redistribution and use of software and hardware developers to distribute documentation that will allow device drivers to be written for their product ... all donations made to SPI and its supported projects are tax deductible for donors in the United States.

[dantiberian]

I'll make a plug for https://sfconservancy.org who sponsor many open source projects including Clojars (which I'm a maintainer of), and Clojurists Together. They do great work and deserve your support.

[robbyoconnor]

Going to plus 1 on this one. The Software Freedom Conservancy is doing great work. They are the fiscal sponsor for the project I run infra for (LibreHealth).

[chaostheory]

There's also Open Collective

https://opencollective.com/