An article giving personal reflection on 1990s NLEs and the different approaches.. No mention of the 1980s Edit Droid and leaves out Lightworks also being used by broadcast TV (at least in UK), but does point out the different philosophies of these NLE's.

Inventing the non-linear edit suite by ChrisZwar (http://provideocoalition.com/czwar/story/inventing-the-non-linear-edit-suite)