Other Useful Sites LWers Read

There seems to be a lot of knowledge that LessWrongers have which is fairly awesome, but not particularly well-covered on Less Wrong.

What other sites do people recommend?

I originally came to LW through HN, and Paul Graham was somewhat influential on my early high school thoughts.

http://news.ycombinator.com/
http://www.paulgraham.com/articles.html

I also fairly regularly read

http://www.ribbonfarm.com/
http://www.sebastianmarshall.com/

I’ve poked through these a bit on recommendation from other people, and they seem ridiculously useful.

http://www.bulletproofexec.com/
http://quantifiedself.com/

There are a few blogs in the LW cluster, but I’m sure others read more of them than me.

If you want to be super nice, could you link to some of your favorite posts/articles?