This is the twice-weekly hidden open thread. As the off-weekend thread, this is culture-war-free, so please try try to avoid overly controversial topics. You can also talk at the SSC subreddit, the SSC Discord server, or the Cafe Chesscourt forum.
Altruisto is a browser extension so that when you shop online, a portion of the money you pay goes to effective charities (no extra cost to you). Just install an extension and when you buy something, people in poverty will get medicines, bed nets, or financial aid.
Substack is a blogging site that helps writers earn money and readers discover articles they'll like.
Metaculus is a platform for generating crowd-sourced predictions about the future, especially science and technology. If you're interested in testing yourself and contributing to their project, check out their questions page
The Effective Altruism newsletter provides monthly updates on the highest-impact ways to do good and help others.
AISafety.com hosts a Skype reading group Wednesdays at 19:45 UTC, reading new and old articles on different aspects of AI Safety. We start with a presentation of a summary of the article, and then discuss in a friendly atmosphere.
Giving What We Can is a charitable movement promoting giving some of your money to the developing world or other worthy causes. If you're interested in this, consider taking their Pledge as a formal and public declaration of intent.
B4X is a free and open source developer tool that allows users to write apps for Android, iOS, and more.
Dr. Laura Baur is a psychiatrist with interests in literature review, reproductive psychiatry, and relational psychotherapy; see her website for more. Note that due to conflict of interest she doesn't treat people in the NYC rationalist social scene.
Jane Street is a quantitative trading firm with a focus on technology and collaborative problem solving. We're always hiring talented programmers, traders, and researchers and have internships and fulltime positions in New York, London, and Hong Kong. No background in finance required.