With the vast majority of Google’s revenues coming from AdWords , Google is still a one-trick pony, despite the tremendous success of that pony.  Like all amazing tech success stories before it, Google now faces the challenge of figuring out how to drive the future of its business beyond AdWords.  Like so many tech companies before them, Google now faces its greatest challenge yet:  Finding the “next big thing.”  But unlike the rare few companies who have found their next big thing, Google is taking a fundamentally different approach.  Microsoft and Apple both come to mind.