Ars, Tech Review, and Wired (birdman hoax aside) are very relevant tech publications that cover trends that everyone who works in technology should be aware of.

Like many people here, I get most tech headlines via Hacker News. Sometimes I use Twitter. I used to be a big Techmeme fan, but I've noticed A) the best stories on TM tend to show up on HN first and B) most other TM content is the commodity Apple/FB/gadget news and blog theater that I am trying to get away from.

Upvote, I really enjoy The Kernel and it's been a recent discovery in part thanks to The Verge linking through to them. First new subscription in my reader for a long, long time.

Macrumors is the only non-hn site where I actually read the comments. They have a lot of really vapid comments too, but the top 10% are good.