I am somewhat confused by your statement that Astynax continues to promote Landmark as a religion. First, the use of the word "promote" is almost exclusively used in what would be considered a "positive" sense, and Landmark among others does not think of itself as a religion, so that description isn't necessarily "positive." Also, as I think can be seen, the Human potential movement which Landmark is generally a part of is counted as a new religious movement, whose name strongly implies "religious" nature but only implicitly, and in fact est is listed in the List of new religious movements I helped put together based on the articles contained in encyclopedic sources on NRMs I found. So there is in my eyes no real reason for really questioning est's inclusion as a NRM. In response to  if you have any sources available to help improve the article, or which might be useful in determining which article we should use as the primary article on this topic area, any input would be more than welcome. So far as I can tell, Landmark has pretty much said that they were initially using the est approach, although they have admitted to changing it subsequently (I'm not sure how much, or if they've ever specifically indicated in what ways). So it might be that something like Landmark Forum or some similar title might be the best main article for the topic of the seminars as a whole, with specific information on the various groups and companies related to it in articles on those topics. Maybe. This is a bit of an active controversy around here, and the topic area has recently been reviewed by ArbCom because of its contentiousness, but if you have any sources availableor other input which you think might be useful we would all welcome seeing them.