Sandro Groganz has posted an article with some of his thoughts on commercialization of PHP-based applications and how the right marketing can help the great source code shine.
Great source code doesn’t speak for itself. More often than not, it isn’t the better software product that wins in the market. This article explains how a PHP-based product can gain a good position in the market and be made appealing to customers by using marketing communication.
He touches on the differences in business models, the "licensing mix" that can happen when Open Source software is used and how open communication through various media, not just in the code, can help to define those really using the code and help you define where your product fits in the overall software world.