Commissions will be recorded _only_ on books purchased through the TwainWeb Bookstore (which includes all of Amazon's Twain titles). It's necessary for you to go through TwainWeb, because as you follow the title links, our "store code" (twainwebmarktwaiA) is appended to the ISBN of the book title, and it's this store code that ensures that commissions are properly recorded. So, unfortunately, only the Twain titles as listed in the TwainWeb Bookstore will be eligible for MTP-destined commissions. Amazon.com forbids duplicating its entire catalog, and indeed--with 2.5 million titles--few web sites would have the space available to do it! :-) Again, feel free to visit the TwainWeb Bookstore by following the link off our home page, at the following URL: http://www.twainweb.net Please remember to order your Twain books through this site, _not_ directly from Amazon.com's web site. Thanks for your report on Amazon.com! I suspect this partnership with them will work out very well. Best regards, Taylor