I've been looking at our largest site which consists of three main sections. A custom written hub (classifieds), a forum and a blog. We get new user generated content coming in day after day with some pretty good variety, the site is now 9 years old so it has age on it's side as well. New pages are indexed quickly and "appear" to rank quite well. The thing we are not seeing is any real growth in our traffic despite the increased size of our site, I get the feeling something is keeping this site down but I'm not sure if we need more link juice or if we are simply carrying too much excess (old content) or perhaps Google has us set at some sort of daily limit based on some other set of rules... What I can say is this, more content does not = more traffic which is probably fair enough when you think about it. I just wonder if it's smarter to trim the fat and use our sites content differently in a more targeted way perhaps. The thing we do know about this vertical is that sites we compete against have vastly more search traffic than we do.