The video that started it all:
http://www.youtube.com/watch?v=Yavx9yxTrsw
And take a gander @ The Guardian UK's article, ominouslytitled:
"How Boxxy brought the web to its knees -- One girl and her quirky videos are taking over the internet."
http://www.guardian.co.uk/technology/blog/2009/jan/20/internet :
The strangest theory I've heard floated is that Boxxy is a paid plant of the Church of Scientology sent to fuck with the protest group "Anonymous," an organization directed (they'd refute this) by Project Chanology, a group of hackers who declared open war on Scientology. The Boxxy vids all ended on the forums of the group's favorite websites, somehow.
I wish I was making that up:
http://encyclopediadramatica.com/Boxxy
-B.