Google Search – How to Download Google Web History

A basic description of how Google Web History works: http://www.google.com/support/accounts/bin/answer.py?hl=en&answer=54068

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Note: Depending upon whether or not you're signed in to a Google Account when you search, the information we use for customizing your experience will be different:

Signed-in personalization: When you're signed in, Google personalizes your search experience based on your Web History. If you don't want to receive personalized results while you're signed in, you can turn off Web History and remove it from your Google Account. You can also view and remove individual items from your Web History.

Signed-out personalization: When you're not signed in, Google customizes your search experience based on past search information linked to your browser, using a cookie. Google stores up to 180 days of signed-out search activity linked to your browser's cookie, including queries and results you click.

To change Web History settings for your account go to: https://www.google.com/history/

(As far as I'm aware), there is currently no standardised way or place to get the actual information, so there is no way of indexing and searching for them.

If you're looking for "hackdays" or something along those lines, though, there are often small communities or people in the area that know about those kinds of things.

If it was me, I'd probably start by ask around on Twitter to try and get in touch with someone who knows about those kinds of things.