The first time you see Tailwind CSS, you might wonder whether someone accidentally pasted their stylesheet into the HTML. A single button can have a dozen classes just to control its spacing, colors, rounded corners, and hover effects. Are we really supposed to write all that? Each class does a small, specific job. Once you recognize them, you can style an element right where you’re building it, without jumping between files or thinking up another class name. The HTML gets busier, but making c

Although Class Central lists online courses in 87 languages, courses made in English outnumber all of the others by more than six to one. English is therefore a useful language to know, even though some courses have subtitles in a range of languages. Earlier this year, we updated our list of courses to help improve your writing skills. These courses all assume some fluency in the language. But what if you do not know any English, or your English is very poor? If you do not have convenient acce

Are you new to programming or do you know a beginner programmer? Have you looked at pages of code and thought it’s just too hard to even try to learn programming? There is an easy way: welcome to the world of Scratch! Created in 2007 by the Lifelong Kindergarten Group at MIT, Scratch was designed as an easy, fun introduction to programming for children. But you don’t need to be a child to appreciate Scratch. In CS50’s Introduction to Programming with Scratch, I enjoyed personalizing the cartoon

Update (April 2026): On April 9, shareholders of both companies voted overwhelmingly to approve the merger — 99.4%% at Coursera, 99.9%% at Udemy. The deal is expected to close in the second half of 2026. I also dug into the 300-page merger prospectus and found that Coursera approached Udemy three times over two years before getting a yes, and that Pluralsight’s owner made a competing cash offer. Read the full merger history. TL;DR Coursera is acquiring Udemy in an all-stock deal worth ~$1.8 b