Yelp (YELP) gains Wednesday after Yahoo (YHOO) says it will include the site and app’s listings, reviews, and other information in the Web portal’s search results. YHOO shares slip in a choppy day for tech stocks.

Yahoo senior director Anand Chandrasekaran made the announcement in a blog post on the firm’s site, adding that in addition to the reviews and information, a photo-viewing experience will be included.

Yahoo CEO Marissa Mayer has said her firm is “long in search,” indicating it wants to beef up its search function in a market dominated by Google (GOOG) and that it will use partnerships to help it achieve this goal.

YELP is up nearly 3% and traded as high as $93.48, moving in the upper end of its 52-week range of $22.48 to $101.75.

YHOO, down fractionally, traded as low as $36.48 Wednesday. It moves in the upper end of its 52-week range of $21.87 to $41.72.

GOOG is marginally higher.

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