SF Critical Mass has no leaders, so every social media profile (and this website!) is unofficial.

SF Critical Mass (Current)

• Twitter: https://twitter.com/CriticalMassSF
• Instagram: https://www.instagram.com/sfcriticalmass
• Facebook Page: https://www.facebook.com/CriticalMassSF
• GitHub: https://github.com/sfcriticalmass

Old SF Critical Mass

• Twitter: https://twitter.com/sfcriticalmass
• Facebook Page: https://www.facebook.com/sfcriticalmass
• Original Blog: https://www.sfcriticalmass.org

Other Organizations

• San Francisco Bike Party: https://sfbikeparty.wordpress.com
• SafeStreetRebel: https://www.safestreetrebel.com
• San Francisco Bicycle Coalition: https://sfbike.org