I see many people complain aStores don't index too well, but have you ever looked at the robots text for them 12 pages per minute spread across ALL the many of 1000's of aStores As you can see from the html code for http://astore.amazon.com/ they also have set up a google webmaster account so probably have the crawl rate set very low for google as well. I would have thought that there must be 50,000 (even 100,000 or more) aStores out there by now, many with 100's of pages. By the time you include all the product pages your chance of having a search spider your aStore page is very very low.