The Federal Trade Commission provides great information on protecting your identity.
Also, be sure to take advantage of a federal law that allows you to get a free copy of your credit report from each of the 3 credit reporting companies. You may request a report once every 12 months. The credit reporting companies (Equifax, Experian, and TransUnion) have set up a simple Web site for more information. Remember, the credit reporting companies are not required to provide you a credit score, if you want your credit score you will have to pay for it.
If you want to exclude your name from nationwide consumer credit reporting company lists for unsolicited credit offers call 1.888.567.8688.
Remember, protect your identity!