CSILE was a computer program developed in the 1980s to facilitate knowledge building within learning communities. It allowed students to build a collective knowledge base by sharing thoughts, pictures, and notes. The goals of CSILE were to promote active learning, cooperation, and reflection. It evolved into Knowledge Forum, which focuses on intentional learning through collaborative problem solving and knowledge improvement. Studies have found that Knowledge Forum helps students engage in meaningful discourse and construct their own understanding when used for project-based and collaborative learning activities.