Sorry for the delay in posting this. From a reader:

[you wrote:]“Someone with a LOT more time on his or her (oh who am I kidding, no chick would do this) hands should compile a master link list to all of the internet fads over the years. Maybe someone’s done it already? If so, I’m sure I’ll find out shortly.”
Here ya go:
http://en.wikipedia.org/wiki/List_of_Internet_phenomena
http://www.ultimatememedatabase.com/
http://en.wikipedia.org/wiki/Category:Internet_memes