Orders go directly to Amazon, with the usual discounts, but if you visit from this site and make a purchase, "referral fees" will credited to pmjs, and used to support list activities.
The pmjs list is an Associate of Amazon.com, Amazon.co.uk, and Amazon.co.jp and a Partner/Partenaire of Amazon.de (Germany) and Amazon.fr (France). There are quick search page for each affiliate on this site:
Those looking for books on the new Japanese Amazon site should bookmark the search page or browse by category.
Amazon has a page of information about the Amazon Associate system. Information for pmjs members is circulated on the list, and is also summarized in the FAQ.