Tag-Based Search in Yahoo & Google!

A new plug-in brings tag-based search to Google and Yahoo. The tool comes in the form of an add-on for the Firefox browser (except for the latest 3.1 beta). It basically inserts a context-aware tag cloud into the traditional search interface to help you navigate through your search queries swiftly and intelligently. You can filter by keyword tags, but also by websites and even domain name extensions, and turning it off is as easy as clicking your mouse. The add-on even works on Google News both for source and location tag clouds, and enables you to filter down by author in Google BlogSearch.
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