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 * [InterPlanetary File System](https://ipfs.io/) - The InterPlanetary File System (IPFS) is a protocol and peer-to-peer network for storing and sharing data in a distributed file system. IPFS uses content-addressing to uniquely identify each file in a global namespace connecting all computing devices. **See also :** [Wikipedia](https://en.wikipedia.org/wiki/InterPlanetary_File_System) and [GitHub](https://github.com/ipfs/ipfs)
 * [Replication crisis](https://en.wikipedia.org/wiki/Replication_crisis) - The replication crisis (or replicability crisis or reproducibility crisis) is, as of 2019, an ongoing methodological crisis in which it has been found that many scientific studies are difficult or impossible to replicate or reproduce. The replication crisis affects the social and life sciences most severely.
 * [awesomedata/awesome-public-datasets](https://github.com/awesomedata/awesome-public-datasets) - Awesome Public Datasets | A topic-centric list of HQ open datasets.
+* [Chart.xkcd](https://timqian.com/chart.xkcd) - is a chart library plots “sketchy”, “cartoony” or “hand-drawn” xkcd styled charts. 
+* [jwilber/roughViz](https://github.com/jwilber/roughViz) - Reusable JavaScript library for creating sketchy/hand-drawn styled charts in the browser.
+* [Excalidraw](https://excalidraw.com/) - is a virtual collaborative whiteboard tool that lets you easily sketch diagrams that have a hand-drawn look & feel to them. **Bonus** : [Extensions & libraries](https://libraries.excalidraw.com/)
 
 # Digital marketing
 * [Portent Blog](https://www.portent.com/blog) - articles about analytics, copy writing, creativity, internet marketing, PPC, SEO, social media