What's left of Sears is now owned by K-Mart. (K-Mart is descended from S.S. Kresge, which operated "dime stores". Dime stores were like dollar stores, before inflation.) Now they can go down together.
Not sure if that was a Sears purchase or not though.
IBM, in turn, sold off IBM Global Network and much of their web hosting business to AT&T in 2000.
edit: I forgot that Kodak also had a role in the formation of IBM's Global Services business...ISSC (an acronym which I can't remember the expansion of other than the I was IBM) started as the bundling up of Kodak's I/T services organization, eventually selling completely to IBM.
Yes, somebody should have come up with Amazon before Amazon did. But they didn't, and here we are now.
Sears shut down its catalog division in 1992. Amazon launched in 1993.
I don't think it's one of Christensen's examples (it's been a while since I read the book) but IMO the all-time greatest blunder of this type was Sears closing down their catalog operation the same year the first graphical web browser was introduced. The younger readers may not remember this, but there was a time when the Sears catalog sold everything. You could even buy an entire pre-cut house that would be shipped to you for assembly.
They basically had Amazon, and threw it away. Now they're essentially nothing but a subsidiary brand of K-Mart.