I still think Inovator's Dilemma is the most insightful business book ever written. If you truly understand what he's talking about in that book you'll get insights in technology that it's hard otherwise to understand because they feel very counter-intuitive in the beginning. This book should be on the desk of every CEO, especially in large corporations, but it's also very useful for startups to shape their products into something with a high potential for success.

Blue Ocean Strategy is also a similar and great book, and the Chasm books series (Crossing the Chasm, Inside the Tornado, Chasm Companion) are very good complementary books to Innovator's Dilemma (and Innovator's Solution).