vdNote - Share noteworthy moments from YouTube videos.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Hubub - Host better conversations around video.
Tyke - Mac menu bar app that @torrez really needed to take notes
Bookmark It - Create awesome notes on YouTube videos
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.