It has never been a more exciting time to be a developer. Numerous open platforms exist in which to ply your trade and make a good living doing it. A platform’s user base grows as it matures, and inevitably gives birth to a thriving developer ecosystem supporting that platform, selling services into it, and when the platform is any good that ecosystem will turn into a marketplace. There has been an explosion of these ecosystems as evidenced by the success of the Apple App Store, Facebook, Twitter, Sales Force and Google Apps. In the last few years, WordPress has come into its own and has generated its own cottage industry for themes, plugins, and other add-on services.
What makes WordPress unique is that the platform itself is open sourced under the GNU General Public License v2. This license imposes itself on derivative works by insisting that they in turn be licensed under the GPLv2 if and when they are distributed to others. Generally, this poses no issues, and everyone releasing plugins and themes on the WordPress.org Extensions db has chosen to release their code under the GPL.
Continue reading
