List of Open _______

Because I think it might be alternately amusing and useful, I’ve decided to compile a list of Open things. Additions welcome in comments; or if you can point me to someone else who has already done this, I’d appreciate that too. I think the list is more interesting if it stays focused on organizations claiming to represent Open Something, rather than just individuals saying that X is open, but pointers in that direction welcome too (and maybe will also show up some interesting patterns). Bonus points if they have a standard for defining what “open” means in their context, or if they are just hilariously awful.

“Open”, by Monica’s Dad, used under CC-BY 2.0.

The list:

I know there are more, but this is all I can think of in a pinch this morning. Help?