Just for the record, I'm about half-way through the list. (All the way down to Internet Radio/Streaming Broadcasts.) So far, a total of 18 broken, missing, stolen or non-functional links... including those to higher education entities which surprised me. I will prepare a comprehensive report when time permits but wanted you to know... I'm on the job.
A few of the links actually attempt to open but only identify who it leads to... and that further action is required by the party involved in using the link. It looks like a link can be "taken over" or stolen if abandoned or neglected by the original owner... in many cases.
Surprisingly, Muses Muse opens, then explains it has been closed. I was surprised they did not take the link down a few years ago when this was announced.
Enough for now.