Here is a guide with the best free online courses to learn Haskell for both beginners and experienced programmers.

Here are the best online courses to learn JavaScript, the programming language mainly used by web developers to create interactive, dynamic websites.

In Q4 2025, Duolingo announced it would let go of $50M in bookings to reach 100 million daily active users (DAUs) by 2028; a strategy Class Central covered in detail last month.  2026 is its “investment year,” and Q1 was the first quarter of execution. So far, the plan seems to be working. The Expected Results: Low Bookings, High DAUs Duolingo is running multiple tests to improve the free experience: spoken tokens for speaking practice, Speaking Adventures for real-world conversations, and fla

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

In 2025, Udemy hit its first profitable year, but its Q4 2025 ended in a loss. A few days after announcing the numbers, the stock reached an all-time low. The company didn’t have an earnings call, nor did it release an investor presentation because of its pending merger with Coursera. The earnings call would have been helpful to break down the numbers, since the numbers look bleak from an investor’s perspective. The overall revenue has fallen for the first time since the company went public, a

In today’s data-driven world, Geographic Information Systems (GIS) play a crucial role in analyzing and interpreting spatial information. GIS is a powerful tool that allows professionals in various fields (environmental science, urban planning, and business) to visualize, interpret, and make informed decisions based on geographical data. Whether you’re a geographer, urban planner, environmental scientist, or someone interested in leveraging spatial data, acquiring proficiency in GIS can open n