Wikipedia vs. Britannica
http://en.wikipedia.org/wiki/Wikipedia:External_peer_review/Nature_December_2005 各有各好..係大英要比$$$ sign up je. I like Britannica more.. Their definition is rather firm, stable... Wiki is a bit too free (as an advantage as well as disadvantage) and not guaranteed.... Definition on Britannica are proofread by expects/ professors...
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