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摘要

Stop me if you've heard this one before: a horse walks into a bar and sees a chicken drinking a beer. Above the chicken is a sign-studs pay, chicks drink for free. "Hay, no fair," whines the horse. "No...fowl," answers the chicken. When it comes to the prickly issue of reconciling expensive, fee-based subscription databases with free, power-to-the-people, reference-oriented web sites, foul is fair, and fare is fowl.