years of fun for everyone.

Forgive me if you've already come across this, but Google's compiled a timeline of Usenet Firsts coming from the 20 years of Usenet now available on Google Groups. Some of the included threads are cute, like the first reference to emoticons. Some were spawned by cultural innovations I remember marvelling at (alone -- we had The Source, which was something like Compuserve back then, but only Dad was allowed to dial-up), like this discussion of New Coke. And some are downright poignant, in a Paul Revere kinda way, like this first mention of the Tianamen Square Massacre.