Eli Bendersky's blog. It gets reposted on HN quite often and with very, very good reason. It's an absolute treasure trove of technicalia. I've spent many hours

Eli Bendersky's blog. It gets reposted on HN quite often and with very, very good reason. It's an absolute treasure trove of technicalia. I've spent many hours deep in his articles. On all sorts of cool technical topics, like parsers, debuggers, cool language features, abstract math... And I'm sure I'm not the only frequenter of HN that loves this stuff.