Siimpl Bookmarking - Start collecting and organizing what interests you
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.
UnderlineMe - Highlight, bookmark & organize research from any site
Walling - Walling is your visual space to capture ideas and organize projects.
Tixio - Work as a team without the clutter! Organize, optimize & coordinate.