Tell me, have any of you read this: http://daveydweeb.com/2007/02/07/citizendium-isnt-interested-in- your-opinion/
I was shocked when I read it... that is, until I read Sanger's response beneath it... then I was absolutely dumbfounded. With a guy with that attitude at the helm, I'm expecting the CZ project to fizzle out VERY quicky.
In any case, Wikipedia's success surely involves a large element of unrepeatable luck. The right idea _at the right time_, and a huge element of first-mover advantage or whatever the heck they call it.
There's only one Wikipedia, and everyone who thinks that if they build another one they will come is likely to be disappointed.