3-tier

Where should connection strings be stored in a n-tier asp.net application

Folks, I have an ASP.NET project which is pretty n-tier, by namespace, but I need to separate into three projects: Data Layer, Middle Tier and Front End. I am doing this because... A) It seems the right thing to do, and B) I am having all sorts of problems running unit tests for ASP.NET hosted assemblies. Anyway, my question is, w...