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After I typed "a" into Bing, a list of terms that I had recently queried in Google appeared in purple.

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How does Bing know what terms I recently Googled?

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I can't reproduce. I'm curious what browser you are using. –  William Jackson Jun 9 '12 at 17:02
    
Google Chrome on Mac Lion... Hey, you're right. I can't reproduce this effect in Firefox, Opera, or Safari. Weird. –  David Faux Jun 9 '12 at 18:49
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Ah, the purple list of Googled terms in Bing disappeared after I cleared my autofill options in Chrome. Interestingly, just clearing cache and cookies did not remove the list. –  David Faux Jun 9 '12 at 19:17
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That seems to be possibly a usage of local storage on browsers or cookies from where they could fetch recently searched terms. –  Dharmavir Jun 10 '12 at 4:38
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This is also because the form field <name> is q just like Google's. Doesn't look like they are taking advantage of local storage, just taking advantage of all the browsers autofill options on form field values of same name. –  Dez Jun 10 '12 at 21:50

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