That Thomson's hub calendar is a bit cluttered though. Difficult to see the wood from the trees and I prefer to see the actual data posted on the day calendar after it is released because we can't all be watching for every piece of data. The news section is also too cluttered and looks to be made up of mere pulldowns from various news services. The blog section is nice though and more amenable. Small and meaningful is better than large and tangled in my book.
This one seems to have all the market moving announcements.
www.WorldEconomicCalendar.com
Got some other useful pages aswell.