WordPress is a state-of-the-art semantic personal publishing platform with a focus on aesthetics, web standards, and usability. What a mouthful. WordPress is both free and priceless at the same time. More simply, WordPress is what you use when you want
A. Jackson, J. Yates, and W. Orlikowski. HICSS '07: Proceedings of the 40th Annual Hawaii International Conference on System Sciences, page 80. Washington, DC, USA, IEEE Computer Society, (2007)