Bookmark OS is a bookmark manager and organizer.

Diigo is a powerful research tool and a knowledge-sharing community.

Eversync is an online bookmark sync tool.

Paper.li is a content curation service. It enables people to publish newspapers based on topics they like and treat their readers to fresh news, daily.

Pinterest is a web and mobile application startup that operates a software system designed to discover information on the World Wide Web.

Saved.io is a simple bookmark manager.

lumio is an online content organizing platform.

elCurator let you bookmark, read and collaborate with ease.

Notezilla is a sticky notes app for Windows.

inboard (Pinboard.in) is a social bookmarking website.

Raindrop.io syncs bookmarks into the cloud and makes them beautiful as well as easy to search.

Skloog is an online bookmark management website that is used to organize and sort bookmarks.