Mind sharing just one?
Why might you want that? See https://www.eff.org/issues/icann
The possibilities are both horrifying and wonderful.
A generalized system for selling and validating ownership of digital things makes implementing ticketing easier than building an entire digital ticketing ecommerce site up from scratch.
Ethereum gives you digital wallets, ownership tracking, ownership verification, resale markets via 3rd parties or p2p, and digital wallets natively.