Join 'em, support 'em, donate, promote... whatever. They all do good work. Really good work. And we should all support them as much as we can. Help me, help them, by following them, amplifying their voices, donating or even better?Joining them! And if all you've got is gratitude for the work they do, then drop 'em a line and just say a simple thank you :)
Software Freedom Conservancy
Follow: @conservancy
Donate: sfconservancy.org/donate
Join: sfconservancy.org/supporter
Open Source Initiative
Follow: @OpenSourceOrg
Donate: opensource.org/donate
Join: opensource.org/join
Drupal Association
Follow: @drupalassoc
Donate: assoc.drupal.org/donate
Join: www.drupal.org/association/individual-membership
Internet Archive
Follow: @internetarchive
Donate: archive.org/donate
Join: as above, just choose monthly sustaining member
Wikimedia Foundation
Follow: @Wikimedia
Donate: donate.wikimedia.org