pageoneresults - 1:50 am on Sep 11, 2007 (gmt 0)

Wouldn't I want to expose as much as possible to Google?

You could. I can't really give you any real world experience on launching a site with 29.5 million pages. I do know from experience that launching a new site with even 1,000 pages is a challenge to get fully indexed and ranking these days. Its not an overnight task.

29.5 million pages of unique content? That's somewhat rare these days. There is nothing really unique out there when it comes to that number of pages, especially yellow page stuff which is a dime a dozen. You've got your work cut out for you competing on that level.

Ever consider focusing on a regional market first (local) and then branching out from there?

Personally, if I had that many pages to work with, I'd be putting them into logical groups and performing A/B/C/D testing. I'd determine what my top level pages were based on taxonomy and click path. I'd then block everything but those click paths that are of the utmost value to the user. You're probably going to say they all are. I would too. But, you are facing a technological challenge that requires extreme finesse with handling how the bots are indexing your content for maximum exposure.

Let me put it to you this way, I'd guess that Amazon is seeing upwards of 5+ million Googlebot visits daily. That should give you some idea of what you'll need to get your 29.5 million pages noticed. ;)