A massive repository of 100M+ course-specific documents, now a part of the Learneo group. In 2025, it integrated QuillBot for AI writing and Symbolab for step-by-step math. While its library of previous exams and lecture notes is unrivaled, its high monthly cost and 'unlock' system are often criticized by students on a budget.

The 'Netflix of Education,' offering cinematically produced courses taught by world-class celebrities and industry titans. In 2025, it has expanded into AI-strategy courses and professional certifications. While unmatched for inspiration and storytelling, it is often criticized for being 'too passive' for users who need deep technical training or direct instructor feedback.