Living on the Fault Line
by Geoffrey A. Moore
In "Crossing the Chasm" and "Inside the Tornado," Geoff introduced new concepts for marketing high-tech products. This new book, "Living on the Fault Line" shows us how to apply these concepts to a world that has embraced the internet. Applicable to both internet and traditional business, Moore shows us how we must create products that delight our customers, how to use stock price and market share as success indicators, and challenges us to outsource everything that is not a distinctive competence. A must-read for 2000.

The Market Driven Organization
by George Day
Do you want to become market-driven? This book shows that market-driven organizations are dramatically more successful and gives tips for changing your company. A must-read for executives in high-tech firms. 

Product Strategy for High Technology Companies
by Michael E. McGrath
Though it's a "hard read," this book is a very valuable analysis of "what" to bring to market, how to leverage and extend a company's capability base. Product Strategy will have an enormous impact on the senior managers that read it and on the companies that implement its findings. It is full of useful methodologies and gripping examples, and provides a great balance of strategic vision and operational guidance.

The 12 Simple Secrets of Microsoft Management 
by David Thielen
Microsoft has become the envy of the industry, not from building better products, but from building products that dominate their industry. How do they do it? David Thielen introduces twelve basic principles of management that he’s observed and explains why Microsoft does it while wondering why the rest of us do not.

The 22 Immutable Laws of Marketing
by Al Ries, Jack Trout
This book is very simple and easy to read; it lists the 22 laws which have made many brands successful in this past century. This is not text-book marketing; it is observational marketing which is really the essence of our profession. The book explores why marketing is a discipline of observation and execution that requires a mixture of a solid scientific and a dreamy artistic mind.

Unleashing the IdeaVirus
by Seth Godin
Download the book to your Palm or buy it in paperback from Amazon.
If you don't have time to read the whole book, here's what it says: 
Marketing by interrupting people isn't cost-effective anymore. You can't afford to seek out people and send them unwanted marketing messages, in large groups, and hope that some will send you money. Unleashing the IdeaVirus introduces a marketing strategy that makes sense for everyone.

The Discipline of Market Leaders : Choose Your Customers, Narrow Your Focus, Dominate Your Market
by Michael Treacy and Fred Wiersema
Should you be close to your customers, innovative in product development, or operationally excellent? If you answered "all three" then read this book. Leaders must be adequate in all but can only be excellent at one of these, and we rarely choose that one wisely. An excellent approach to help focus your business.

The Product Manager’s Handbook,
by Linda Gorchels,
The book is designed as an overview for product managers with some templates for regular tasks.

Selling the Invisible
by Harry Beckwith
Written specifically for companies offering services, Beckwith introduces a marketing powerhouse in a small package. He argues convincingly that our customers do not want features but solutions to their problems... and how service is an integral part of the solution, not an afterthought. A good read for all marketers.