What Open Source Projects do you donate to? (or would consider donating)

Every year around Christmas I donate to a handful of projects that I appreciate. This year I picked:

Mozilla
Gimp
PlayOnLinux
Linux Mint
Kodi

I try and spread it around a little each year. What about you guys? Do you donate to any projects? If so which ones and why?

If not, why not? Which ones would you consider donating to?

Network Time Foundation, because NTP is kind of important for the internet to work.

VLC, I've used it for years and they still ain't got no muny. I haven't donated but I would.