US Open Directory Project

Pinonsale.com We offer large selection of phone cards with cheap rates
http://www.pinonsale.com/

Phone card and calling card. Pre paid calling cards at PhoneBell.net. PhoneBell is updated monthly with an huge assortment of domestic calling cards, phone cards. Lowest long distance rates from USA.
http://www.phonebell.net/

Prepaid Calling Cards Eyesurvivecallingcards.com prepaid calling cards purchased online international national phone cards wireless refill phone cards long distance calling cards
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WISENIC, Calling Cards, Callback Cards, Prepaid Cards, Phone Cards WISENIC offers calling cards, callback cards, prepaid cards, pinless dialing, virtual pbx, sip trunking and voip solutions.
http://www.wisenic.com/calling-cards.php