To answer 1) and 4) In my case I used Obsidian as it stands out as a platform that excels in note taking and knowledge organization through its strong linking and backlinking capabilities. It helps me create a network of interconnected notes, making it easier to navigate between related topics and ideas. On the other hand, I complement it with Notion which, thanks to its versatility and wide range of functionalities, provides me with databases, project management tools and note-taking capabilities, all on the same platform. To answer 3) with great frequency. To answer number 5) it is a bit difficult for me to keep up with the updates due to the type of knowledge or subject of interest, which are many.