Where are contracts used in the real world I'd be interested to see some examples of Bitcoin contracts used right now.


Websites that provide escrow services.
Smart properties.
Trading of contracts.
Oracles.


Or are they not really in use right now?
Gregory Maxwell, Pieter Wuille, and theymos are using a 2-of-3 address to store a bounty for contributions to CoinJoin.

https://bitcointalk.org/index.php?topic=279249.msg2983911#msg2983911 

Update: A 2-of-3 escrow and arbitration site recently launched: https://www.bitrated.com/