The Evolving Newsroom

For a truly comprehensive list of news services publishing on Twitter:

1. check out WikiNews
2. click on 'following'
3. scroll through the 550+ news services
4. click 'follow' on any you want to see every day in your Twitter inbox
5. monitor your Twitter box and 'unfollow' any that drive you mad with too-frequent updates

There's everything in there - AP, Washington Post, The Independent, The Guardian, The Age, Time, the Economist, NZ Herald, Wired, Gawker, Drudge Report, New Yorker, New York Post, Sacramento Bee, Modesto Bee... and roughly 535 more.