Guerrilla Marketing by Jay Levinson He discusses some scrappy techniques for promoting your businesses. Not all are applicable to web or hi-tech companies, but it can still spark some great ideas. http://www.amazon.com/Guerrilla-Marketing-4th-Inexpensive-St...
Crossing the Chasm by Geoffrey Moore He discusses the Technology Adoption Lifecycle and hi-tech marketing. http://www.amazon.com/Crossing-Chasm-Geoffrey-Moore/dp/00605...
The Innovator's Dilemma by Clayton Christensen This Harvard business professor discusses what makes a disruptive innovation. http://www.amazon.com/Innovators-Dilemma-Revolutionary-Busin...
Guerrilla Marketing by Jay Levinson He discusses some scrappy techniques for promoting your businesses. Not all are applicable to web or hi-tech companies, but it can still spark some great ideas. http://www.amazon.com/Guerrilla-Marketing-4th-Inexpensive-St...