Guerilla Marketing - Jay Conrad Levinson
Winning Results With Google Adwords - Andrew Goodman
Selling To Big Companies - Jill Konrath
Lead Generation for the Complex Sale - Brian Carroll
Those are just a few, note that none are video business specific. I haven't read a decent book specifically for our industry, but that makes sense. The sales and marketing principals that guide most video companies are not that different than other B2B companies with an expensive product, complex sale and potentially lengthy sales cycle.
Brendan Coots
Splitvision Digital
http://www.splitvisiondigital.com