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Home : Hypothesis

NEWS	Beyond Borders: Why We’re Now Also Hosting Data in Canada 29 Mar: Good news for our Canadian partners: We now offer Hypothesis hosting in Canada. Find out what this means for Canadian data now, and how it could benefit other countries in the future.
EVENTS	Hypothesis 101: Learn More About Social Annotation 19 May 12pm PDT: Get introduced to Hypothesis and see a demo showing how collaborative annotation can transform classrooms, making reading active, visible, and social. Join us >

Annotate the web,
with anyone,
anywhere.

Engage your
students with
social annotation.

See how it works.

Select text to annotate.
Add tags and post publicly or save privately.

Reply to or share any annotation.
Link to notes or whole pages.

Annotate together in groups.
Collaborate privately with others.

Search your notes.
Explore all public annotations and profiles.

An open community project.

We're a mission-driven organization.

Dedicated to enabling layers of conversation over the world's knowledge.

Building an open platform.

That works everywhere, based on open-source technology and interoperable standards.

As a part of a global community.

Working with others across the world to advance human understanding for the public good.

COMMUNITY, PRIVACY, SECURITY, ACCESSIBILITY, AND RESEARCH AT HYPOTHESIS

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