Happy birthday Wikipedia

Wikipedia went online exactly 10 years ago, in January 2001. The strapline pretty much says it all: "the free encyclopedia that anyone can edit". A simple and counterintuitive idea that works wonderfully in practice. In Internet time, 10 years is an eternity. (I mean, who can even remember what the Internet was like pre-Wikipedia?) So, Wikipedia can be proud of itself: it's been around "forever".