List of US online shopping sites with free worldwide shipping:
Amazon is the largest online retailer in the US selling books, movies, music and games along with electronics, toys, apparel, sporting goods, tools, groceries and general home and garden items. They deliver the majority of their products worldwide and shipping is free internationally for orders over US$125.
eBooks.com is the internet’s most popular digital book shop with the largest range of contemporary ebooks from the world’s leading publishers. Prices are well below hard copy books and there is no shipping cost since the ebooks are available for instant download after purchase!