I love the way this article explains some of the key issues with designing distributed systems and how to solve them. It uses the illustration of a theme park and the rides - very clever and a fun read, which is unusual for a distributed systems article!
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I once heard that the way you can tell if something is actually funny is that it causes you to laugh out loud even when you are by yourself. It is much easier to laugh at something when surrounded by others.
There was a tweet recently by Sahil Lavingia that stated
I had never seen the original footage of Sir Roger Bannister running the first four minute mile. His narration of the race really adds to it as well.