Hi Sander:

I revisited to just now to see if you had another follow up, only to find 
that my browser ate my previous response back to you!

To repeat, but in half the text, thank you!  Couldn't have asked for a 
better response.  I was under the impression from prior docs that a service 
was stateless object.  The 'providers' docs tell me that each provider is 
instantiated once, then passed as ref where injected later on.  Thus, i 
created a simple service, and am now able to use my dummy library in my 
controllers where I inject it as a dependency.

You stated that sometimes you'll create a higher scope used by 
appController.  I tried doing this as well, but it raised another Q.  If I 
have nested controller directives like this, I have a case where the child 
controller processes some data, then I want to shove it back up explicitly 
into appControllers scope.  For instance, I do some simple validation on a 
<select> (i.e. not null) and if it it passes, want to bind that value to 
appController's scope.  Right now I just did $scope.$parent.value = 
newValue to assign it to appController's scope.  Is there a less scary way 
to do this?  I'd be in big trouble if template changes to add/remove layers 
of nesting!

Thanks again!  I'm off runnin!

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