Clay Shirky says:
One of my students is building a collection of digital folk art, the non-commercial artifacts of re-mix culture, from Hamster Dance and the Dancing Baby to All Your Base, and wants recollections and suggestions.
The intro to her project says "I am cataloging early popular web culture, putting together a collection of non-commercial digital projects that were widely distributed, the funny or strange things your friends attached in emails or the interesting websites they told you about. I'm focusing on media that was made or distributed by individuals for fun or with political intent – sort of the folk art of the digital world. It's hard to know which projects were the most popular of the most groundbreaking during the early days of the web (roughly 1994 – 1998), so I'm looking for suggestions on what to include."
She's got a form for submitting pointers.