WordPress is open source content management software and currently powers around 34% of all websites on the Internet. The project is contributed to by tens of thousands of developers all over the world and is growing from strength to strength. WordPress allows me to develop flexible and customisable websites to modern standards and observes web development best practices. Furthermore the community of web developers that use WordPress reaches far and wide and allows us to tap in to this collective intelligence and bring that wealth of experience to your project. Good stuff.