Take a peek at this online Google document: https://docs.google.com/document/d/1SGcfQz13ce4FfB-QHKF3WLwxHoCRGBouuvZn-3aoX0k/preview?sle=true
For as long as we all have power.
Already, you see the work of the crowd bearing fruit: Check out the Sandy Timeline (which is still in test mode.)
Another project features a map of all the video live streams along the East Coast.
This document also serves as a great resource, with links to official resources and data, such as forecasts and weather models.