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Internet Archive, San Francisco
The Internet Archive at the Presidio of San Francisco was founded by Brewster Kahle in 1996 and is dedicated to maintaining an archive of the Internet. Their collections include snapshots of the World Wide Web and Usenet.
The Archive also maintains the Wayback Machine powered by Alexa Internet. Once given a URL, this tool allows the user to see versions of the corresponding web page over time. Examples of the Wayback Machine's archives:
The Archive's total collection, as of 2003, is around 100 terabytes of data. A copy of the data is also maintained at Bibliotheca Alexandrina.