Irony in Wikipedia, Example #308

They'll most likely fix this soon enough, so check it out now.
The page http://en.wikipedia.org/wiki/Single_linkage_clustering on Single linkage clustering starts with this notice:

This article is uncategorized.
Please categorize this article to list it with similar articles. (December 2007)

I know, I know, it's a wiki. I can fix it, but this is too precious.