Yahoo Inc. on Wednesday boosted its offerings in its personal-search service, making it easier to save and retrieve web pages and providing tools for sharing them online with other people.

The Sunnyvale, Calif., portal launched My Web in beta, integrating the company's search history service that was launched in October. The latter tracks use of the Yahoo web search engine, so a person can go back later and find previous results to queries.

The release followed less than a week after Google launched in beta a personal search tool that keeps a detailed history of a person's web search. Such tools have raised concerns among privacy groups that say the information gathered could later be used to target individuals for advertising or subpoenaed by law enforcement officials or lawyers.

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