How do I check my free credit report from each of the major credit bureau?

I heard on CNN Headline News that you can obtain one free credit report per year from each of the 3 major credit bureaus.

Does anyone know the names of each credit bureau, the number to call (or address) and what you need to do to get a copy of your credit report?

if you are looking for the free credit score and report usa national site, check out this site

http://free-credit-report-national.com/

Here you can check your 3-in-1 Report from all three credit reporting agencies and your credit score rating.