Doug Chaplin has been running a superb series on the Thirty Nine Articles on his blog Musings of a Christian Humanist. By "superb" I mean at least one proponent of the continuing importance of the Thirty-Nine Articles is revising his estimation as a possible over-estimation.
A sharp example of Chaplin's thinking sharply is in this post on Article 34 Of the Traditions of the Church. You can comment on his post at his post but I mention it here because he does make a pretty unanswerable claim against Anglican proponents of the kind of "sola scriptura" approach which relies on the plain sense of Scripture as a clear and definitive guide to what Scripture means and how we apply it. That approach, of course, comes under attack here from time to time, despite my own, ahem, impeccable defence of it :)
Along the way, Chaplin raises a very sharp point about the Anglican notion of a "national church" as being drawn from neither Scripture nor tradition - a notion which, it is worth reflecting on, as he does, lies at the heart of the current imbroglios in which we find ourselves.
Nevertheless I am not quite as sure as he is that the notion of the national church is what he says it is. But perhaps I should leave my own thoughts on that for another day!