Switchfly has raised $2.8 million, adding to the $15 million it raised this spring and completing its Series C financing.

A new investor participated in this portion of the round: Thayer Ventures, a San Francisco venture capital firm that was formerly Quest Hospitality Ventures. The Switchfly deal is part of Thayer Ventures’ strategy to invest in companies disrupting traditional hospitality sector models — with more to come in 2013.

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