Raindrop.io - All your articles, photos, video & content from web & apps in one place.
WebCull - WebCull is an ad-free, privacy-focused bookmark manager that works from any browser or device.
Superdense - No text, just icons.
Pocket - When you find something you want to view later, put it in Pocket.
Linker - Cloud based bookmark manager
LARDER - Bookmarking for developers