The site has a long list of sister marches.
I will be in DC from March 22 until the 25th. If anyone would like to meet up for good conversation, let me know. If there are a few (or many) of us, I will make arrangements for a place to chat. Do support the students! They are now expecting 500,000 in DC alone and have raised close to $2,000,000. I will be staying at Crystal City in Arlington so if you are nearby, let me know and we can chat over coffee, wine, or beer.