Saved.io - THE SIMPLEST BOOKMARKING TOOL EVER.
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Pocket - When you find something you want to view later, put it in Pocket.
Bort - This user-friendly web based service will allow you to keep all of your videos synchronized on all of your devices and web browsers.
LinkLocker - LinkLocker is a lightweight bookmarking service with an emphasis on privacy.
Delicious API - Delicious is a social bookmarking service.