Nancy,

>Agreed. And just to make the point very clear...copy editing is not technical editing. A technical editor will actually make sure thoughts are clearly expressed, but a copy editor looks at, well, just the copy. Not the content in any way.

You almost had it right about a copy editor, until the last sentence. A good copy editor must also look at the content for context, as a cross-check on the technical editor. To me, a copy editor also is concerned with thoughts being clearly expressed.