Our site is expanding internationally. During our checkout process, we ask customers to give us billing information such as Address, City, State, & Zip Code. This is used both for fraud prevention and for customer analytics. While I would love to eliminate these fields since we aren't shipping anything, business conditions exist where we need to keep collecting this info.
The kicker to all of this is that we are strong proponents of minimizing clicks to purchase, and the USA/Canada will likely remain 90% of our business for the foreseeable future.
Has anyone seen any excellent international address forms out there in the wild? I have read this excellent article International Address Fields in Web Forms but was wondering if there were any studies a bit more up-to-date than this.