Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.
Bookmark It - Create awesome notes on YouTube videos
Freezetab - A powerful alternative to bookmarks.
Siimpl Bookmarking - Start collecting and organizing what interests you
Pocket - When you find something you want to view later, put it in Pocket.