When we did a search in google and retrieved some results for my website we had the option to see older cached version of pages. One or two of my pages have time specific events on them or deadlines (i.e. the deadline for a writing competition) and it would be nice if we could prevent the older versions from being available when they are out of date as no one wants to find out information for a competition that has already closed.
On the webpages where we specifically don't want an old version to be available from the cache we've told the search engine not to keep the history by adding the following command into the webpage html source within the <head> and </head> area.
<meta name="ROBOTS" content="NOARCHIVE">
Let us know if you try this too and how you get on.
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