I like to read Heise Online (
http://www.heise.de). I have to mention that Heise Online is written in german and an english version exists at
http://www.heise.de/english/. But the
official english version of Heise Online is called
The H (which belongs to
Heise Media UK Ltd.):
http://www.h-online.com/ .
I especially like (and recommend) the security section of Heise Online (http://www.heise.de/security/), which is also available on The H for english readers: http://www.h-online.com/security/ .
now, the other sites I read on a regular base are:
http://reddit.com/r/programming (I know you saw that one coming)
http://reddit.com/r/haskell
http://reddit.com/r/ruby
... and some other subreddits.
I can recommend you to search for other technical subreddits at http://www.reddit.com/reddits/ that match your interests.