"Google is 15 years old and has 39,000 employees (54,000 if you count Motorola), and its last major innovation — AdSense — was way back in 2003." And AdSense w

"Google is 15 years old and has 39,000 employees (54,000 if you count Motorola), and its last major innovation — AdSense — was way back in 2003." And AdSense was largely an acquihire of Applied Semantics.