Buffett gave each finalist 10 class B shares of Berkshirs.
Many entries were pure online concepts.That is a change from when Buffett would buy Coca-Cola six-packs at his grandfather's grocery store for 25 cents,and then sell bottles for a nickel each.
"They've had the benefit of the Internet," Buffett said,"and that's reflective of the products they've come up with.They are leagues ahead of where I was at the same age.