Where do you go for good quality international or domestic news online?

Free ones only. Prefer to read articles than watch video clips of news narrators.

By quality, I mean well written and researched articles about politics, economics, the sciences, engineering, humanitarian matters, and so forth. I'm after articles written by journalists/scientists/those in the know who will research and write well on things that matter.

I'm not interested in celebrity news, reality tv news, consumer gadget news, and sports news. Not that I dislike sports.