I'm not sure where exactly the phrase "Don't Mourn, Organize!" originates. It might be in the song by Joe Hill, but either way it's a slogan that's kind of fallen by the wayside in politics lately. A friend of mine wrote a book (now out of print) by that title back when she was a community organizer in the 70s, and that's where I learned it. The meaning is pretty self-explanatory. And now, in the wake of the Coburn amendment, I'm thinking about it again.