By law you're entitled to one each of your three credit reports (one from each credit bureau) for free once a year anyway. Freecreditreport.com and all those similar 'services' are scams.
http://www.ftc.gov/bcp/edu/pubs/cons...dit/cre34.shtm
"Only one website is authorized to fill orders for the free annual credit report you are entitled to under law — annualcreditreport.com. Other websites that claim to offer “free credit reports,” “free credit scores,” or “free credit monitoring” are not part of the legally mandated free annual credit report program. In some cases, the “free” product comes with strings attached. For example, some sites sign you up for a supposedly “free” service that converts to one you have to pay for after a trial period. If you don’t cancel during the trial period, you may be unwittingly agreeing to let the company start charging fees to your credit card."