I love this idea. I have been a big fan of EveryLibrary since it started. They are doing good work for a good cause (libraries) and they are doing it in a smart way. Their latest effort, Rapid Response Fund, will allow them to help libraries at the 11th hour:
“Our Rapid Response Fund is designed to amplify the voices of local library advocates during a crisis by supporting paid ads for outreach and action. “
I urge you to take a look: http://everylibrary.org/rapid-response-fund/