6. Oracle Acquires Taleo For $1.9 Billion
Speaking of cloud-based software acquisitions, Oracle -- never one to shy away from big money acquisitions -- spent $1.9 billion to purchase Taleo. Taleo's Software-as-a-Service applications are designed to help businesses manage employee recruiting, training and performance review. Oracle said it will integrate Taleo's offerings into its Oracle Public Cloud service, which has been bolstered recently with other cloud-focused acquisitions.