Some of the largest companies in the world have been on a buying spree in 2014, snapping up complementary businesses via strategic acquisitions.

Tech mergers such as Facebook's purchase of WhatsApp for $19 billion--roughly 13 times Facebook's 2013 net income--may look like the beginnings of another bubble. Then again, with the huge growth in mobile users and technology, some strategic acquisitions are practically a requirement for staying competitive.

The infographic below from FinancesOnline shows which mergers and acquisitions are shaking up the tech world and which have been flops.

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