We just published this whitepaper:https://github.com/orisi/wiki/wiki/Orisi-White-Paper
It's about a solution to the problem of tying contracts with outside world. Right now there's no good way to do so - Ethereum blockchain obviously will not fetch a website to decide if an outcome happened, and Shellingcoins have a ton of practical difficulties.
What we're proposing is a network of independent arbiters who monitor the world and sign transactions as necessary.
It currently supports only Bitcoin, but was made with Ethereum in mind - perhaps somebody would like to help us port it?
The source code for distributed oracles & clients will be published today afternoon, and there's a website ( http://oracles.li/
) that goes along with it.