In 2000, Jakob Nielsen, the world's leading expert on Web usability, published a book that changed how people think about the Web Designing Web Usability (New Riders). Many applauded. A few jeered. But everyone listened. The best-selling usability guru is back and has revisited his classic... more

PHP and MySQL are great tools for building database-driven websites. There's nothing new about that. What is new is the environment in which your site operates—a world rich (and growing richer) in web services that can add value and functionality in many different ways. Creating... more

SQL (Structured Query Language) is a standard programming language for generating, manipulating, and retrieving information from a relational database. If you're working with a relational database--whether you're writing applications, performing administrative tasks, or generating ... more