Trexy

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Trexy is an Internet metasearch engine established in early 2006. It allows users to record and share "search trails" of their activity on search engines. The trails themselves are searchable, allowing users to save time when searching by examining the pages found by other users. The intention is also to allow easier searching of the "deep web".

The site is used by installing a toolbar in one's web browser which records the user's activity on search sites that Trexy is aware of. In mid-2006 this numbered in excess of 3,000 search engines.

The technology was inspired by Vannevar Bush's 1945 paper As We May Think, in which he described his idea of a machine called a Memex: a Memex would augment one's memory and searching powers by helping to create and share "trails of association" between things in the "common record". The name "Trexy" is derived from TRails and memEX.