Duolingo’s side business, Duo’s Taquería, has doubled its revenue to $1.3M in 2024

Google offers many online courses with free certificates and badges. We’ve put together a full list.

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

The 31 most popular free online university courses and MOOCs starting in June 2024.

From IPO success to stabilization efforts, explore the journey of Thinkific, an ecommerce platform for online course creators, as they navigate growth, setbacks, and strive for profitability.

Confession: I used to think critical thinking meant being skeptical of everything. Question every headline, every claim, every source. Look beyond the face value. But critical thinking is structured evaluation, and knowing when to accept a good argument is as much a part of it as knowing when to reject a bad one. The people I know who are actually good at this are calmer, not louder. That’s what makes picking a course tricky. Two courses called “critical thinking” can teach almost nothing in c