If you are into space and want a lot more coverage than any main stream media outlet gives you, go to NASA TV.
During the Shuttle mission they will be on live 24 hours a day. You can watch the goings on at mission control and also see some great live shots from Discovery and the International Space Station.
They also have mission briefings, and updates.
I know the news update will be only the "official" ones, but at least you get it right from the horse's mouth instead of second hand and later from the news media.