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.
Booky - Online bookmark manager. Store your favorite bookmarks online. Available everywhere. Private. Customizable. Fast.
Firefox Sync - Bring your Firefox bookmarks, tabs, or passwords wherever you go with Firefox Sync. Share between computers and mobile devices. Get Firefox now!
Linkman - Linkman Pro allows for managing large amount of URLs in its own database.
Pinboard - Pinboard is a personal archive for things you find online and don't want to forget.