Headlines do move markets and you should know when they are due.
jagmont,
Everyday, on one of my computers, I input times and headlines into my microsoft outlook calendar (it's like a day planner for appointments) of the headlines I know have caused market reactions i the past (not all headlines do).
If you want to keep track of the economic headlines that could possibly affect the markets here are the free sites I use
http://www.mypivots.com/dn/
This is my pivots, if you look at the bottom of the page there is a label "economic events" it will take you to the following page
http://www.mypivots.com/DeltaT/economic-events.aspx
this gives you a list of the reports and the times.
Another website (these are all FREE) is
http://www.forexfactory.com/calendar.php
this site gives you the week at a glance, including expectations. It is forex related, and that is how they code the signficance of the reports, but they are very timely in updating the reports. When the report is out, there is a little green circle next to the expectations column for the report and you click on that to get the number.
another site for free, week at a glance economic reports along with street expectations is
http://www.briefing.com/Investor/Index.htm
when this comes up, look across the header of the page and choose CALENDARS, then in drop down, economic calendars
here is the url for the calendars page, but sometimes you have to go through the hoe page to get there.
http://www.briefing.com/Investor/Public/Calendars/EconomicCalendar.htm
here's another one
http://www.nasdaq.com/asp/EconodayFrame.asp
I usually only use the first 3 sites mentioned.
AND...
what I think is more important, you don't have to have an opinion or a guess as to what the report is or will be, all you have to do is know when it will be reported, then just watch the reaction in the marketplace to know how you should take your shot.
Hope this helps