The document discusses virtual learning environments (VLEs), which are computer-based systems that facilitate online learning. VLEs allow for educational interactions and help turn online spaces into places for learning. They have emerged alongside increased student use of social media and can provide interactive learning similar to in-person classes. Examples of popular VLEs mentioned include Moodle, Second Life, and Sloodle. Research suggests that VLEs increase engagement and involvement through collaboration, which can help improve student learning outcomes. However, VLEs also present challenges such as costs, training needs, and technical support requirements.