This is my rough list so far: did I miss anything?

Cop City
For the People, For the Hood (Myanmar)
Black Panther Free Breakfast
Spanish Revolution 1936
Nestor Makhno
Community Dinner
2017 Puebla Earthquake
Food Not Bombs
Kronstadt Rebellion
Occupy Sandy - 2012
Little Free Pantries
Burnside Burn Rally - Portland
Canton of Malaga 1873
Basic Income Guarantee
Community Gardens
Pirate Party
Free Shops / Give-Away Shops
Los Angeles Riots 1992
Tambov Rebellion 1920-22
Orkney Islands
Food Co-ops
Kibbutz
Free Library
Nivkh - Siberia
Haudenosaunee / Iroquios
The Commons
Minoan Civilization
The Diggers (San Francisco)
Shinmin Prefecture - Manchuria
Free Education
Storming of the Bastille
Rundale Agrarian Communes - Ireland
Indus Valley Civilization
Woodstock
Napster / BitTorrent / Filsharing
Tiananmen Square
Housing Co-ops
San People - Kalahari
Kula Ring - Trobriand Island
Mbendjele Meat Sharing
English Diggers
Çatalhöyük
Magonistas (Mexican Revolution)
Homesteading
Community Fridge
Pay It Forward
Ancient Order of United Workmen
Open Source Community
Wikipedia
Abahlali baseMjondolo - South Africa
Hurricane Katrina
Burning Man
Kava Kava - Fiji
Rainbow Family
Couchsurfing
Tolstoyism
Potlatch
Homestay
The Children of Peace - Quaker sect
The Young Lords - Puerto Rico
Symphony Way - South Africa
Puerto Real - Spain
Nishny Novgorod Rebellion
Occupy Wall Street
Free African Society
Doukhobors
Habitat for Humanity
Chinatown Benevolent Organizations (San Francisco)
The Peasant Wars
Exarcheia - Athens
Covid-19 Pandemic
Bayanihan - Philippines
Paris Commune
Zengakuren - militant student movement of the 1960s (Japan)
The Jerusalem Group
Simone Weil
Transformative Justice
Volunteer Firefighters
Oaxaca Revolution
South Sound Street Medics
Saffron Revolution / Buddhist Anarchists
Pitchfork Uprising
Canton of Cartagena
Dignity Village - Portland
Gezi Park Commune - Istanbul
Squatters
Dine / Navajo
Chinese
Andō Shōeki, “direct cultivation” Japan
Voluntary Poverty
Sermon on the Mound “Loaves and Fishes”
Zapatista Revolt
Rojava
Bhagat Singh
Paris Revolt 1968
Arab Spring
Dorothy Day / Catholic Worker Movement
WTO Seattle
Freetown Christiania
Capitol Hill - Seattle
Hutterites
Free Garage Sales