Twitter Buys Summize For $15 Million

The not-so-quiet rumors circulating last week about Twitter buying social search engine Summize are no longer rumors but are confirmed. Twitter founder Biz Stone confirmed it on his blog today, and one report has the deal valued at $15 million in cash and stock. Two surprises there: 1.    $15 million is exactly what Twitter just secured in its latest round of financing. 2.    Twitter has stock.

Google, Yahoo Deal Could Raise Ad Costs

Yahoo’s search advertising deal with Google is likely to raise average keyword prices on Yahoo for most marketers according to a new study from search management firm SearchIgnite.Keyword prices on Yahoo have the potential to increase by an average of 22 percent. The actual increase for a specific marketer depends on the amount of spending across different types of keywords and the ad ranking on the results page.

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