.impact was a venue for communicating and collaborating on effective altruist projects. In 2017, .impact and Students for High-Impact Charity teamed up to form Rethink Charity.[1]
.impact. Official website, archived from the original.
Rethink Charity | Students for High-Impact Charity
Barnett, Tee (2017) .impact is now Rethink Charity, Effective Altruism Forum, May 30.