See also this conversation.

Although I'm happy MediaGoblin is mentioned, I'd rather Pump.IO was mentioned on there... we don't even have federation yet. (It's being very actively worked on, but it's not there yet, and guess what we're basing it on? Oh, everyone on here already knows.)

So, Pump.IO should be on here, but even better, how about the very middle of the "binding federation" in the center is "W3C Social Working Group".

Why isn't that the case? What can we do to make it so?