The Encyclopaedia Britannica announced its final print run this week. Looking at the description of the closing print product, it's clear that its day has passed.
Some argue that Wikipedia, with its open, free, crowdsourced content, "did in" the EB. Tim Carmody over at Wired purports that Windows, not Wikipedia, caused EB's demise:
"Britannica went bankrupt in 1996, long before Wikipedia was a crowdsourced gleam in Jimmy Wales' open-access eye. In 1990, the company had $650 million in revenue. In 1996, it was being sold off in to for $135 million. What happened in between was Encarta."