I really think so.
I make use of one the many Google services called "Google Alerts". With this service you can tell Google to return any search result based on your criteria as and when it happens. Quite handy, so that I don't have to go their search engine all the time. And since it reflects the latest link they find, I don't have to sieve through the search results all the time.
I have Alerts that return any search result that have anything to do with "Morning Musume", "Hello!Project" and the sort. Today, within a couple of minutes after publishing my last entry on my H!P blog, immediately I receive an email from Google Alert about it.
Either a Google spider have coincidentally been browsing my blog at that time, or Google crawls their own domains first (and whatever domain that have been acquired by them) with the highest priority.
So I guess it's a good thing to use Google's services if you want your contents to be frequently featured on Google search results. ^_^