http://www.asis.org/ has been crawled 622 times going all the way back to December 11, 1997.

A crawl can be a duplicate of the last one. It happens about 25% of the time across 420,000,000 websites. FAQ
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January 20, 2011

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February 20, 2011

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February 22, 2011

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March 10, 2011

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March 20, 2011

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April 20, 2011

1 snapshot

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April 21, 2011

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April 27, 2011

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May
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May 18, 2011

1 snapshot

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May 19, 2011

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May 20, 2011

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May 22, 2011

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Jun
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June 14, 2011

1 snapshot

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June 20, 2011

1 snapshot

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June 24, 2011

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Jul
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July 14, 2011

1 snapshot

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July 19, 2011

1 snapshot

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July 20, 2011

1 snapshot

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July 25, 2011

2 snapshots

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July 26, 2011

1 snapshot

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Aug
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Nov
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Dec
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Note

This calendar view maps the number of times http://www.asis.org/ was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.