In 2025, Harvard CS50 offers 10 free certificate courses on topics such as computer science, Python, and AI.

Online course platforms closely track their learners. And things have gotten worse over the past two years.

On Feb 5, 2026, Coursera released its Q4 2025 results. It was the first report since announcing the Udemy merger, which Dhawal Shah, Class Central founder, recently analyzed (in 5000+ words!). Coursera’s stock barely moved after the announcement and is currently at ~$6, down 87% from its opening day price in 2021. Here’s a quick review of its last 2025 quarter. More Users, Struggling Segments Coursera’s Q4 revenue was ~$197M, up 10% YoY, but growth has been flat since Q2. Consumer revenue saw

The best courses to learn geology, whether for personal interest or if you are considering a career in the resources field.