Search Engine Secrets (and keeping them so)

Do Search Engine Marketers keep the best secrets of Search Engine Marketing to themsleves and away from forums?

The Search Engine Watch blog has picked up on this interesting theme in an article entitled Keeping SEO Secrets. The article is influenced by another written on Threadwatch (The Dirty Little Secrets of SEO & How Information Travels), where the author claims he asked someone who had posted to a forum asking about whether a certain technique worked to 'remove his post in exchange for finding out how that technique actually worked'. Danny Sullivan gives his opinion on the subject and comes up with his own advice for search engine marketers. Two very interesting and thought provoking articles.