Energy Biz Recap: Tesoro Wins Price Target Prize, Others Lose

Shares of Groupon, Inc. (NASDAQ:GRPN) pop on word that the firm officially introduces its mobile card reader, following months of trials in the Bay Area. The company’s rates for most of its swiped transactions are below those of market leader Square’s, a fact which has led Rocky Agrawal to believe that Groupon might yet be viable, as it can cross-sell the reader to thousands of daily deals providers.

Don’t Miss: Groupon Starts Dealing With Mobile Payments.

Google Inc. (NASDAQ:GOOG) has published a research paper that describes in detail Spanner, which is a distributed database that spans its global network of data centers, while keeping latency low for search data and other content.

Facebook (NASDAQ:FB) shares were up yesterday, following positive comments from Colin Sebastian at Baird, praising the firm’s plans for its mobile ad network. The analyst said that “Facebook is amassing the most comprehensive user profile database in existence”, adding that this might allow it to “become a more relevant ad network than Yahoo! Inc. (NASDAQ:YHOO) and AOL Inc. (NYSE:AOL).”

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