Notebook.ai - A smart notebook that grows and collaborates with you
Snipo.io - AI Flashcards & Take video notes into Notion in click
Moleskine Smart Notebook - Turn hand-drawn sketches into fully workable vector files
Annotate.tv - Optimize your learning on YouTube
Kanka.io - Kanka.
Slid - Capture knowledge from online videos, courses, and webinars