Pizza Hut, which recently crossed the $1 billion benchmark in online sales, is launching a Facebook application that allows fans to place orders without leaving their profiles. Although online ordering isn't new -- the chain has offered it in some form since 2001 -- Bob Kraut, VP-marketing communications at Pizza Hut, said the bulk of that $1 billion in sales has come in the past 18 months. The chain is also launching text-ordering capabilities and e-gift cards, which can be purchased, exchanged and redeemed online.

Pizza Hut's not alone: A number of the nation's biggest fast-food chains are beginning to embrace text and iPhone ordering capabilities, at least as tests. Already for the three months ending in August, food marketers sent almost 1.4 million text-message ads, up 37% from the same period last year, according to ComScore's M:Metrics data. Consumers seem to want the offers: of all the ad categories using SMS marketing, restaurants had the highest response rates, with 15.5% of consumers responding to the ads.

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