Usability - getting there from here

I am discovering that when you build a large complicated site with numerous applications that you need to give users a number of ways to get to the same place. For example, a button to a high frequency page, a list of it on the index page, and the ability to find it using the site search engine. Suppose you discover, via site stats, that users usually visit the search or index page after visiting a certain page of your site. For example, suppose you are administrating the NIU site. You discover that people who visit the COMS department page often next visit a page where you can sign up for lab time. A link to the labtime page isn't on the coms main page - users are going back to the search engine or index and typing of hitting the "lab signup" link. Is there a way to create a window or frame on the COMS page that would take notice of this trend and automatically create a link to the lab signup page? It would be similar to the "most emailed stories" link we see on the new york times web site, but would be relative to the particular page you are on. It would take note of where users usually go from here...