This document discusses virtual learning environments (VLEs). It begins by defining a VLE as an education system based on the web that models real-world education with virtual classes and tests. It then lists some motivations for using VLEs such as providing education to disabled students and those with weak economic backgrounds. It outlines some key features of VLEs, including being social spaces that students can access from any location at any time. It also discusses some challenges of implementing VLEs, such as changing learning cultures and training teachers. It concludes by stating that the long-term goal is to create a fully-featured learning system targeted at academic environments to prepare students for the real world.