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Pocket is a cloud based article snippet and bookmarking platform.
ScrapBook
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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.
Tizmos
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Tizmos for Teachers is a personalized page for teachers that allows them to easily share online resources with students and other teachers.
Fetching
Commercial
Fetching is a new kind of bookmarking app.
Raindrop.io
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Raindrop.io syncs bookmarks into the cloud and makes them beautiful as well as easy to search.
Shaarli
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Shaarli is a personal, minimalist, super-fast, database free, bookmarking service.
lumio
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lumio is an online content organizing platform.
Hypothes.is
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Hypothes.is is a web-based annotation tool for websites.
scrible
Freemium
scrible is a research platform for school and work.
Compare Diigo with alternatives
Compare SemanticScuttle and Diigo and decide which is most suitable for you.