The Local Effective Altruism Network (LEAN) was a meta effective altruism project of .impact (now Rethink Charity) which was operational from 2015-2020. It's original mission was "to help local Effective Altruism (EA) groups come into existence and thrive" and began as a volunteer-led, grassroots, and open community project. LEAN:
Trzesimiech, Michal (2019) Local Effective Altruism Network’s new focus for 2019, Effective Altruism Forum, March 30.
Herzig, Richenda (2018) 2017 LEAN impact assessment: Evaluation & strategic conclusions, Effective Altruism Forum, February 28.