Wikipedia Statistical Nirvana
I had never before ventured inside the Wikipedia Statistics provided by the Wikimedia Foundation itself but it’s a wonderfully impressive place. Particularly interesting are its charts regarding all the language Wikipedias. It’s graph galore in there: number of wikipedians, active wikipedians_ articles, new articles per day, database bytes, links, words — you name it, and it all dates back to its inception. Not for the faint of bandwidth.