Stache - Stache makes it quick and easy to collect and re-discover pages you find useful, interesting or inspiring, in a beautiful, visual and fully searchable library.
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
PutCut - PutCut is a social bookmarking tool for saving links.
Pocket - When you find something you want to view later, put it in Pocket.
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
netroStation - netroStation is a visual bookmark manager to save & organize hundreds of links.