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• Case | HBS Case Collection | 2013

  Yammer (A)

  Mikolaj J. Piskorski, Kerry Herman and Aaron Smith

  In spring 2012, Yammer was on track to become a highly successful standalone company. Yammer was a leading Enterprise Social Network (ESN), providing companies a private social network in which employees could collaborate securely and efficiently. However, later that year, Microsoft executives unexpectedly reached out with an offer to acquire Yammer for $1.2 billion and integrate Yammer into the Microsoft Office division. An integration with Microsoft would have a profound effect on Yammer's scalability, software development, and organizational culture. David Sacks, CEO of Yammer, debated the challenges and opportunities related to competition, product, and culture as he thought about the offer on the table.

  Citation:

  Piskorski, Mikolaj J., Kerry Herman, and Aaron Smith. "Yammer (A)." Harvard Business School Case 713-407, May 2013.

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• Case | HBS Case Collection | 2013 (Revised from original 2009 version)

  Barack Obama: Organizing for America 2.0

  Mikolaj Jan Piskorski, Laura Winig and Aaron Smith

  Less than a week before Barack Obama was due to be sworn in as the 44th president of the United States, Obama for America (OFA), the president-elect's official campaign organization, announced the formation of a post-election organization, Organizing for America. The new organization would keep the campaign field team offices open after Obama took charge of the country for the express purpose of influencing supporters to back his administration's agenda. The case describes the activities of the Obama for America campaign and asks whether the new president should use social media tools to activate the grassroots, or whether he should abandon these unconventional tools in order not to upset politicians in Washington.

  Keywords: Advertising Campaigns; Political Elections; Marketing Communications; Power and Influence; Social and Collaborative Networks; Internet;

  Citation:

  Piskorski, Mikolaj Jan, Laura Winig, and Aaron Smith. "Barack Obama: Organizing for America 2.0." Harvard Business School Case 709-493, April 2013. (Revised from original April 2009 version.)

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• Supplement | HBS Case Collection | 2013

  Yammer (B)

  Mikolaj J. Piskorski and Aaron Smith

  Supplement to Yammer (A), case 712-494

  Citation:

  Piskorski, Mikolaj J., and Aaron Smith. "Yammer (B)." Harvard Business School Supplement 713-483, April 2013.

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