TL;DR Duolingo reported Q4 2025 revenue of $282.9 million (+35% YoY), closing its first billion-dollar year, breaking estimates again. The stock dropped 22.5% anyway. Again. The company plans to slow down monetization to grow to 100 million DAUs until 2028, by focusing on teaching quality, giving more to free users, and growing non-language courses. Duolingo’s Q4 2025 results confirmed something we highlighted in its 2025 review: growth is slowing. The company crossed a billion dollars in r

From setting up your first Pi to creating smart home devices and mini servers, explore the versatile world of computing with the best free courses on Raspberry Pi programming and projects.

In 2021, edX was acquired by 2U for $800M, stopped being a nonprofit, and the 2U integration has begun.

Every Black Friday, Class Central compiles the best online learning deals from online course platforms. But you don’t need to wait for Black Friday. You can find interesting deals all year long! In this article, we’ve compiled the best online learning deals and discounts available right now (or that will soon go live). When deals have an end date, we included it too, but note that it’s not rare for deals to remain active even past their end date, so you might want to give them a try nonetheles