I need the isbn-10 of at least 30 million for unique books.
ABSOLUTELY NO duplicate books in this database.
Amazon here shows more than 40 millions unique books in the search results:
[url removed, login to view];pct-off=10-&sort=salesrank#/ref=sr_hi_1?rh=n%3A283155&sort=salesrank&ie=UTF8&qid=1352759669
22 freelancers are bidding on average $773 for this job
I have experience scraping fashion retailer websites with an average daily volume of 1.5 million. I also have experience scraping electronics and mobiles from Amazon.