Notebook.ai - A smart notebook that grows and collaborates with you
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.
Moleskine Smart Notebook - Turn hand-drawn sketches into fully workable vector files
Siimpl Bookmarking - Start collecting and organizing what interests you
Snipo.io - AI Flashcards & Take video notes into Notion in click
Annotate.tv - Optimize your learning on YouTube