An improved resource to find web pages that were available as of your valuation date

The Internet Archive's Wayback Machine is a great resource for business appraisers who are looking for web pages as of a particular date in the past or are trying to find material that is no longer available on the web. The new BETA version offers improved search navigation and more data is available on each page.  Currently the archive has more than 150 billion archived web pages – some pages date back to 1996. Caveat: the archive doesn’t offer every change made on every single web page, and it usually takes six months before an archived page becomes available.  A URL is necessary­–you can’t search the Wayback Machine by keyword. And remember, it is a BETA version, so the tool may be buggy and unstable.  Still…what a fantastic way to “prove” what was “known or knowable…”