Based on our record, PM School Challenges seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Here's a website where companies post product challenges where PMs need to develop features or improve them. https://pmschool.io/product-challenges. Source: about 2 years ago
The Product Folks - A volunteer-led community of product managers and makers
UX Challenges - Done reading about UX? Start doing it.
The Data-Driven Product Manager - 8 tips to help smart PMs make data work for them
Befront - Learn UX/UI design skills in practice with bite-sized tasks
XdoX - Start challenges, log your progress and also get a unique profile page!
Frontend Mentor - Supercharge your front-end skills by building in a real-life workflow. Solve real-world HTML, CSS and JavaScript challenges whilst working to professional quality designs.