(New York Times) — You may have received gift cards this holiday season that you don’t necessarily want.  If you’re considering selling the cards at one of the sites that buy the cards, check out a recent post on My Money Blog that compares what different card-buying sites offer for a $100 gift card at various retailers.  The post, “Selling Unwanted Gift Cards for Cash: Price Comparison,” does a simple comparison of what sites that provide upfront quotes — Cardpool,PlasticJungle, GiftCards.com and GiftCardRescue — would offer for certain gift cards.

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