Online credit cards, or "Smart" cards, offer added security features to make on- and off-line purchases even more secure.

In addition to the highly involved authentication process used by traditional cards, "Smart" credit cards utilize the more sophisticated aspects of cryptography to make your transactions even more secure.

Smart Cards also have a microprocessor built right into the card, which enhances the memory and processing capabilities of the card. This makes it possible to store identification information, track your participation in rewards and affinity programs, and store other useful information right on your card.

For now, the unique capabilities of this highly-secure card are available only on a few cards in the US. However, with their growing popularity and the increased demand for card-user security, Smart Cards can be expected to replace simple plastic cards (like the ones most of us use) almost entirely in the future.

Before you apply - a few important factors to consider...

• Card rates, fees, and card member benefits are comparable to other general-use credit cards, but the added peace of mind and security this type of card offers enhances its value for many consumers.
• Introductory rates are usually short-term offers, lasting anywhere from a couple of months to a full year. Introductory rates may apply only to new purchases, balance transfers, or if you're lucky, both. Be sure to note any special conditions or fees that may apply to these promotional rates. Also, be aware that the long-term rates shown generally apply only to new purchases; interest rates for balance transfers and cash advances may vary.
• Note whether the APR is variable or fixed. Most cards have variable rates, which means the rate can fluctuate regularly. Fixed-rates can also be raised when interest rates climb, but the changes will not occur regularly and require at least 15 days notice from the card issuer.
• Be aware of annual fees, balance transfer fees, foreign transaction fees, over-the-limit fees, late payment fees, and the myriad of other fees that may apply. Check with your issuer and carefully read the fine print of the offer to determine these numbers and avoid any unpleasant surprises!