Dzogchen has recently become popular—or at least there is a lot of interest in it. It is a good fit for many Western Buddhists, because it is simple and has a minimum of ritual or dogma. However, it is not well-understood. In Tibet, it was considered an advanced and secret teaching. That is no longer true, but there are still few good introductory books.
This section of Approaching Aro has pages on aspects of Dzogchen that are commonly misunderstood, and for which I have not been able to find good discussions on the web. I have tried to explain these points as simply and clearly as possible, while remaining accurate to the tradition.