The data supplied by Ravenous is excellent.

I want to throw in an extra two cents to all following. Any phone calls, or letters offering secured credit cards should be avoided. I'm not saying all are some kind of scam, but most are "fishy" to some extent.

Want a secured credit card to use for Paypal, or to use to participate in legitimate surveys, which may require a credit card to participate, go to bank, and they will issue you one with a limited amount, maybe you deposit $150-200 on card. Reason: Even legitimate surveys, if you use the product a certain amount of time, and don't return it on time, will debit the card to you, as a purchase. If it has a limited amount, they can't debit past a certain amount. Sometimes if service oriented service, or product will continue to debit card. If card only has certain amount, can't be debited past that amount.

In general beware of unsolicited, unrequested solicitations for secured credit card.