Is it good to keep key content pages close to the root or have them deep within a topical funnel-structure? Actually, the most noticeable fact is, this is not SEO advice, but behavioral advice. If one has stuff, some number of clicks from the root page, visitors will seem to find it. But if somebody has to click ten times to find the page to register for the admission compared to register right on the main root page, only some people will find it if it's all that many clicks away. So it is not a big deal where it is in the path, it may be at the root level or eight levels deep. Maybe, it's a big deal for other search engines, but not for Google. The only thing matter is, one should think from visitors perspective. And to be honest, this is not search engine ranking advice, but just an opinion to enhance the ROI ( return on investment).