heads down -- georg baselitz at the international art biennale in venice. water dances -- a new fountain was created for the gardens of versailles. online cuisine -- a growing number of foodies turns to blogs for cooking ideas. "all the world's futures" is the motto of this year's art biennale in venice. the six-month event focuses on the hopeful stars of the next generation, a few of whom, i am told, are hidden gems of the