Dogster Inc., a creator of popular pet owner Web sites, Monday announced it is offering affinity debit cards that users can personalize with a photo of their pet. Tempo Payments Inc. is providing the Web-based platform that enables organizations to offer affinity and cobranded debit cards to customers, contributors and members. Users also can access the Web-based platform to link the cards to a preexisting checking account. In October, Tempo announced The Breast Cancer Fund, Greenpeace and the Surfrider Foundation as the first organizations to offer affinity MasterCard-branded debits cards that generate charitable donations from cardholder purchases (CardLine, 10/19). Dogster and Catster cardholders will earn 0.5% cash-back for every signature-based purchase. Tempo automatically will deposit rewards into cardholder accounts on a monthly basis. First Bank & Trust of Brookings, S.D., issues the cards. Tempo processes the transactions.