Kayak backlashes Microsoft on Bing ‘Stop Copying Us!’

Kayak.com has sent a letter to Microsoft complaining about the similarities between Bing Travel search and Kayak’s popular multi-airline airfare search engine.  Kayak said: “We have contacted them through official channels about concerns about the similarities between Bing and Kayak,” Kayak’s chief marketing officer Robert Birge told Wired.com “From the look and feel of their travel product, they seem to agree with our approach to the market.” Microsoft’s Whitney Burk denies that there’s any copying going on. “We are discussing the matter with Kayak,” Burk said in emailed statement.