I certainly think GCA is influential, if not "important". I am (obviously) much more of a lurker than a poster, but I gain an awful lot of perspective from this site, and I would thank you all for that. The gathering of talent--from architects and historians to writers and superintendents--is just too great to ignore. Whether it is changing the world of architecture, or influencing the kinds of courses that are finding their way onto the ground is another question entirely, and certainly not one I'm at all prepared to answer. I do think that some members who closely identify with the site, and know many other members on a personal level, might be tempted to downplay GCA's importance, but there is without question a broader audience out there that is taking it all in--some of whom have never considered architectural matters before. Everything else, aside, the simple fact that there is intelligent dialogue taking place is important, because as far as I know it isn't happening anywhere else online. Ultimately I think it's impossible to quantify the "importance" of GCA beyond Mr. Morrissett's bandwidth, but I believe it exists, and if nothing else it is important to those who post and read every day.