Google to Acquire More Companies as Big as YouTube, DoubleClick

Google is likely to buy more companies about the size of YouTube and DoubleClick, its two largest acquisitions, to help offer more online services, said the company's head of mergers and acquisitions.

"The world changes really quickly, and companies that were small two years ago are huge today," David Lawee, Google's vice president of corporate development, said. "It wouldn't surprise me to see more large opportunities for us." In 2010, Google has already spent $1.6 billion on more than 20 companies.