Calls for accountability focus attention on assessment of student learning. Authentic assessment involves evaluating student learning as students perform real world tasks. We present a four-stage conceptual framework for authentic assessment. We argue first that evaluation is a process rather than a static one-time event. Second, authentic assessment involves evaluating experiential learning. Third, multiple evaluators assess student work, including self-assessment or review by a public audience. Finally, authentic assessments offer more learner choice. Wikis, as user-friendly web spaces that support easy web authoring for individuals or for collaborative groups, provide a platform for both student learning and authentic assessment.