Retail gets the news last - the big hedge funds & HFT's pay the big $ to ensure they get the news & economic reports first.
Yeah stocks always move before any of the newservices get it, sometimes they get it on time, but most times when a stock makes a massive move intraday your left scrambling for a couple minutes till the news hits the wires, and alot of times ive seen TWTR quicker to break the news than both my news feeds that i pay 400 bucks a month for, so IMO it is foolish to dismiss TWTR, its one of the most valuable tools you have as a trader if you know how to use it.
Being on top of the news is an edge in and of itself, and twtr helps with that.