The
FTC requires that copies of your credit report (from all three major national credit reporting companies) be made available free of charge annually, and free must really mean free! Checking your credit report is important, if for no other reason than to make sure that there are no accounts or cards that you are unaware of. And taking advantage of the annual free report is a no brainer.
My annual reminder just popped up, I am printing my three reports right now, and am therefore reminding you to do the same. If you've not done so recently, the site you want to visit is www.annualcreditreport.com. (And yes, the individual sites will try to sell you stuff you don't need - just click the No Thanks options).
--- Ben
Theres also a few pay services that aren't that expensive that will send you quarterly reports of all three or the deltas as someone above said.