Pocket - When you find something you want to view later, put it in Pocket.
Bookmark2 - Bookmarks2 is a powerful productivity tool that makes is much easier for anyone to save their links...
ArchiveBox - The open-source, self-hosted internet archiving solution
Diigo - Diigo is a powerful research tool and a knowledge-sharing community
Pinboard - Pinboard is a personal archive for things you find online and don't want to forget.
Linkman - Linkman Pro allows for managing large amount of URLs in its own database.