Coinbase Earn - Earn crypto while you learn crypto
Observable Notebooks - The portfolio and technical blog of Chris Henrick – provider of professional web development, data visualization, GIS, mapping, & cartography services.
Metal Pay - Pay your friends and get up to 5% back in crypto.
Jupyter - Project Jupyter exists to develop open-source software, open-standards, and services for interactive computing across dozens of programming languages. Ready to get started? Try it in your browser Install the Notebook.
Swelly - Collect opinions from your friends within seconds
BeakerX - Open Source Polyglot Data Science Tool