From Open source takes eCommerce global

"As online retailers in the US attempt to benefit from the opportunities of global eCommerce, they must rethink their business requirements and systems from the ground up. To successfully conduct business across borders and cultures, there are several considerations that US-based entities must acknowledge, including variances in taxes and regulations, content and process localization, and seamless experiences for mobile customers.
To fulfill the requirements of these issues, they must also choose the right technologies to manage them all."
Excerpted from an article by Scott Dahlgren, Managing Director of Commerce Guys North America