preserving nairobi heritage through audio visual archiving the unh project
Archiving and Preserving the Web
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Transcript of Archiving and Preserving the Web
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Archiving and Preserving the WebKristine Hanna
Internet Archive
April 2006
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Internet Archive Universal Access to Human Knowledge
• a 501(c)(3) non-profit
• Located in Presidio, San Francisco California
• Founded in 1996 to build an ‘Internet library’
• Provide permanent access for researchers, historians, and scholars to historical collections that exist in digital format.
• Built on open source principles
• Open Source software developed by Internet Archive and the IIPC
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Internet Archive Stats
• Largest public web archive• 60 billion pages, 55 million sites• Have expanded to include texts, audio, moving
images, and software: 2.6 million downloads a day
• 60,000 unique users a day
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What do we collect?Web Archive
• Take a broad snapshot of the web every 2 months • 2 billion pages a month• Websites from every domain (.org, .com, .edu etc)• Content in 21 languages• Entire archive accessible for free to the public via
the website at www.archive.org
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Why try to collect and preserve it all?
• Web has no boundaries, no limits• What will be important to future generations?• What is there today may be gone tomorrow
– “Capture now, ask why later”– “Grab it while you can, work it out later”– “Lose as little as possible”
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Open Source Technology primarily developed by Internet Archive and IIPC
• Heritrix: web crawler• Wayback Machine: access tool for rendering and
viewing files• Nutch and Nutchwax: Search engine• Arc File: archival record format (ISO work item)
How do we collect it?
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Wayback Machine
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Preservation
• Store multiple copies of each Archive
• 1300 machines/servers
• Multiple copies at different geographical locations (U.S. Alexandria, Amsterdam)
• Standard storage boxes, open source design
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Archiving Next Steps
Institutions:• need to create collections around web
material • want to dig deeper in crawls for their
specific websites. • Want more control and access• want a technology partner that could harvest,
index, access, store and preserve their collections for them.
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• In 2002, began to form partnerships with Library of Congress, NARA and other National Libraries, including Australia, France and Italy
– Dedicated Crawl Engineer
- Customized crawling
• Library of Congress collections: (sample)
• Iraq War: 450 Million documents and growing
• 2004: U.S. National Elections: 88 Million documents
• Supreme Court Nomination 2005: 100 Million documents
1. Partner Contract Crawls
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• Last year, early 2005, we had requests from state archivists, university librarians and other memory institutions:– develop an application for smaller institutions, that
have some resource constraints– A web based service that allows partners to create,
manage, search and store their web archives – User friendly web interface– Does not require technical expertise or infrastructure
• Pilot launched in September 2005
2. Archive-It
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Pilot Partners
• Center for Research Libraries• Research Libraries Group ( U of Toronto, U of Indiana,
Haverford and Swarthmore Colleges, IISH)• University of Texas• Library of Virginia• State Archives South Dakota• State Archives North Carolina• State Archives Alabama• Minnesota Historical Society• Institut d'Etude Politique de Grenoble
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Archive-It Access
• All collections are accessible for free to the general public, with text search, at:– www.archiveit. org– Partners websites with links
• Plus, member web application with login
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Screen shot here
• Public site
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Test Drive the Application
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Screen shots here
• Monitor page
• Reports page
• XML feed
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• Search– Your archived web pages are searchable by text or
URL
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• Stored Online
• We provide copies of the files in a hard drive that we can ship to your institution up to 2x a year
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Archive-It Releases
• 1.0 (February 8)
• 1.5 (April 19)
• 2.0 (July 29)
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Challenges we face
• Making the collections useful for a variety of end users (i.e. general public, researchers)
• Making sure we capture the best and most relevant content
• Continuing to develop our tools for access and harvesting (crawler.archive.org)
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Internet Archive’s priorities
• Collaboration and Partnerships
– Continue to act as a technology partner in providing web archiving services to government and memory institutions
– Continue to develop Open Source software
– Develop common tools, storage formats and standards through the IIPC (International Internet Preservation Consortium)
– Open Content Alliance (OCA) digital books project
• Multiple copies across the world
– Within IA’s own facilities and with partners such as LC, Bnf, Library of Alexandria