MarkOly - 6:07 pm on Mar 6, 2013 (gmt 0)
Thanks Andy. That makes me feel better.
Google doesn't crawl URLs based on directly following links and thus doesn't "enter" the site in any traditional fashion - rather, it finds links and then adds them to the crawl queue (which includes its own priorities for when to grab URLs). Of course, more external links is likely to translate into a higher priority for crawling.
So I need to focus on these pages Googlebot is hitting. I can't believe I haven't been looking at this!