Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Pinboard - Pinboard is a personal archive for things you find online and don't want to forget.
Pocket - When you find something you want to view later, put it in Pocket.
Kick - Overcome shyness with actionable Kicks ❤️
Basket - A note taking application for KDE. Lots of features.
Birdbox - Team bookmarking and note-sharing.