GiveWell does extraordinarily rigorous research on which charities and causes will do the best with your money—the best we’ve seen. They make sure that their recommended charities do what they say they do, that what they say they do is effective, and that they have room to use your donation productively.

The Centre for Effective Altruism is an umbrella organization running 80,000 Hours and Giving What We Can. They also run the Global Priorities Project and other special projects. Giving What We Can is a society of people who have pledged to donate 10% or more of their income to the most effective causes. It also conducts it’s own research into charity effectiveness. 80,000 Hours researches how we can choose careers that will have the most impact. They also provide one-on-one career coaching for aspiring altruists.

.impact is an open community for independent effective altruist projects. It provides venues for anyone to share their own. Its focus projects team runs LEAN (the Local Effective Altruism Network), the EA Hub and more.

The Life You Can Save, an offshoot of Peter Singer’s book by the same name, is the largest effective altruist organization. Its 16,000 members have each pledged to donate at least 1% of their income to effective charities.

Animal Charity Evaluators investigates the most effective ways of reducing non-human animal suffering. Since there are many non-human animals living in extremely painful conditions on factory farms, animal suffering could be a very highly effective altruistic cause.

Several organizations are focused on existential risk and the far future of humanity. The Future of Humanity Institute (FHI), the Centre for the Study of Existential Risk (CSER), and the Future of Life Institute (FLI) use the tools of mathematics, philosophy, and science to research big-picture questions about the future of humankind. In January 2015 FLI received a donation of $10 million from Elon Musk and in the same month, Nick Bostrom (from FHI) joined Stephen Hawking, Max TegmarkLord Martin Rees, Jaan Tallinn among others, in signing FLI’s open letter warning of the potential dangers associated with artificial intelligence.

The Center for Applied Rationality runs 4 day workshops on, no surprises here, rationality. They often give significant discounts to effective altruists, and a lot of people report benefiting from doing one.

Effetive Altruism Ventures is a VC fund designed for incubating projects that create a lot of social value.

Charity Science exists to experiment with outreach methods and find those that work, and do them.

Raising for Effective Giving, a project from EAF, encourages touring poker players to donate 2% of their winnings (which sometimes totals tens of millions).

Additionally, many individual writers and other sites have interesting material on effective altruism, some of which can be found here.

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