This post was based on selling products to enterprises. I've never been a consultant, so I don't know for sure, but I'd suspect the rules are a bit different. For example, as a consultant, I would think many of your customers come through referrals, whereas when selling a product things like PR, AdWords, and a direct sales force are your main tools for getting business. I'd be interested in hearing your experience once you've been at it for a year or so. There are probably a lot of interesting lessons!