Amazon unveils Internet search engine
http://www.A9.com, an independent unit of the Internet retailer, launched a new version of its Web site late Tuesday night. The service greatly expands on early features of A9, which launched in test form in April, by turning it into a centralized service to power personalized Web search. To this end, A9 lets people navigate, annotate and store Web pages they've visited, and like TiVo, will recommend sites based on users' past preferences.
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