Pocket - When you find something you want to view later, put it in Pocket.
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Instapaper - Instapaper is a simple tool to save web pages for reading later.
Keep Everything - Light & Fast Web Archiver for iOS, OS X.
Taggy - App for fast saving anything without losing focus
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.