Influenced by generative and intentional learning environment strategies and tools, a World Wide Web-based tool has been developed to empower learners to build their own Web-based Performance Support System (WPSS) to support learning, professional development, and performance within a domain. Enabling learners to develop their own WPSS accomplishes two goals: people learn about the domain while they are locating, evaluating, and organizing resources to support their work activities and/or intentional learning activities; and once the WPSS is completed it can be used to support performance and further professional development while working in that domain. In this way, a WPSS not only enables learners to build a learning and performance resource that will provide them with immediate support and guidance, it also helps them develop structure, strategies, and skills for subsequent lifelong learning activities. Topics discussed in this paper include: (1) lifelong learning defined, including metacognition and self-directedness; (2) organizations and professional development, including conventional training and electronic performance support systems solutions; (3) instructional methodologies for developing lifelong learning skills, including generative and intentional learning environments; and (4) learner-centered WPSSs, including an overview of development tool components and examples of the WPSS in use. Two figures illustrate sample WPSS categories and a threaded discussion. (Author/DLS)