Recommended Rationalist Resources

I thought Recommended Rationalist Reading was very useful and interesting. Now we have voting and threading it seems a good time to comprehensively gather opinions on online material.

Please suggest high-quality links related to or useful for improving rationality. It could be a blog, a forum, a great essay, a reference site, an e-book, anything clickable. Anyone interested can then check out what looks promising and report back.

[edit]
There seems to be confusion… The post’s for online material, not physical books. We already have Recommended Rationalist Reading, but as that hasn’t got threading and voting, if people think it’s a good idea I (or someone else) can do a seperate post for books [metaedit] …not happening, is against blog guidelines. [/​metaedit]

Looks like we’re getting lots of suggestions, so please don’t forget to vote on them so busier readers have an idea which ones are worth more investigating!
[/​edit]


Contributors—if making multiple suggestions, please give each their own comment so we can vote on them separately. Click ‘Help’ for how to do links.

Voters—for top level comments containing suggestions (as oppose to comments replying to suggestions) please vote on the quality of the resource, not anything else in the comment. If you feel strongly about the comment quality, just post a sub-comment.

Here’s 3 to get started: