在多个项目中使用EntityFramework

I am battling with dealing with how best to break a domain model up across multiple Visual Studio projects. I am working with EntityFramework 4 and Enterprise-type patterns to rationalise a system which can be reused for various applications. Eventually I want to end up with a set of mix-and-match DLL class libraries which can be reused across web applications.I am battling with dealing with how best to bre