Tech acquisitions are still alive and well. A new report from PrivCo (Annual Private Company M&A Research) shows 2,357 private technology company M&A deals happened in 2012 for a total deal volume of $84B. The most active buyers of private U.S. tech companies for the year were Facebook (16), Google (16), Groupon (12), Twitter (10) and Cisco (10). More details here.