Keeping these links here, for reference. The first two are the most useful.
Indivisible—The Practical Guide for Resisting the Trump Agenda has become the essential resistance how-to manual.
Trump Cabinet Confirmations Blockade uses spreadsheets to corral an amazing amount of info into one place.
Wall of Us sends you four concrete acts of resistance to your inbox each week. One of those, for Inauguration Day, is #TakeTheOath, started by several actors, writers and directors. The details are here.
For those who are new to civic activism and for those feeling overwhelmed, My Civic Workout is your personal trainer.