The best of the "breaking news" business tickers in my opinion is the "Latest news" section at the top of the page at MarketWatch. It's very quick to pick up on whatever is driving the market and will post a headline while it compiles a proper report.
Bloomberg's news analysis and features are better but they charge business clients for the full service so what's freely available is a diluted version.
I'm interested to hear what others use. Am I missing anything better?