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Originally published at Now Is A Long Time Too. You can comment here or there.
Jill Whalen’s High Rankings Advisor newsletter carries some breaking news about an “unavailable_after” tag, for use by Google to determine when information is past a nominal “sell-by date” - the special offer is over, the event is past, or that article is gone into the subscription-only archives.
It’s not clear yet, however, if that’s going to be a meta tag, for use on a per-page basis, a tag in the proper HTML sense that you could use for a section of a page, or something else entirely like a class or a command in a robots.txt file. If anyone knows, let me know - in the businesses I’m working in, that functionality would be gold.
UPDATE: It’s been confirmed by Google as a meta tag.