Pocket

Freemium

Pocket is a cloud based article snippet and bookmarking platform.

Firefox Sync

Open Source

Firefox Sync allows accessing your open tabs, bookmarks, history, passwords and preferences everywhere.

Pinboard

Commercial

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

Shaarli

Open Source

Shaarli is a personal, minimalist, super-fast, database free, bookmarking service.

vi.sualize.us

Freemium

VisualizeUs helps you collect and connect to the best visual inspiration of the web.

Pearltrees

Freemium

Pearltrees is a visual and collaborative curation tool.

Tizmos

Freemium

Tizmos for Teachers is a personalized page for teachers that allows them to easily share online resources with students and other teachers.

Diigo

Freemium

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

Raindrop.io

Freemium

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

ScrapBook

Open Source

ScrapBook is an extension for the Mozilla Firefox web browser which adds enhanced scrapbooking, page saving, bookmarking, and notetaking functionality.

SemanticScuttle

Open Source

SemanticScuttle is a social bookmarking tool experimenting with features like structured tags and collaborative tag descriptions.

FFFFOUND!

Free

FFFFOUND! was a social bookmarking web site that allows registered users to share already existing images on the Internet and to receive personalized recommen…