Complex adaptive systems, society, and, oh, yes, Wikipedia
Thanks to the TP! Wire Service for the pointer.
In case you haven't explored Wikipedia thoroughly, check it out. In addition to the main starting page, there are Wiktionary, Wikibooks, the Wikiversity, Wikinews, and more. There are even versions in quite a few languages, including one often (predominantly?) used where I once worked and which I can still read, at least mostly. Speaking it would be (and always was) something else.