Ask HN: What unknown technical blogs or sites do you read?

I've not seen these ones on any list here:

http://blog.databigbang.com

http://blog.nektra.com

http://www.yosefk.com/blog

http://www.cocos2d-iphone.org/

http://blogs.southworks.net

http://awelonblue.wordpress.com/

Mike Ash's Friday Q&A is easily one of my favorite technical blogs http://www.mikeash.com/pyblog/

I find Planet blog aggregators a useful and surprisingly unknown resource. Great way to get a view into the blogs of a whole project community without having to follow a pile of them individually; I recommend following the Planet for any project you regularly use or have a strong interest in. I personally follow these planets regularly (via a bookmark folder that I open into tabs):

Planet Debian: http://planet.debian.org/

Planet Freedesktop: http://planet.freedesktop.org/

Planet GNOME: http://planet.gnome.org/

Kernel Planet: http://planet.kernel.org/

Planet Mozilla: http://planet.mozilla.org/

Since it hasn't been mentioned yet - The Risks Digest - http://catless.ncl.ac.uk/Risks

See just how wrong things can, and do, go.