I love when a project begins to take shape.
Amazon was updated a couple of times. Once time was to accommodate support for Amazon
.co.uk,
.co.jp,
.ca,
.fr and
.de and to also account for an alternative URL string they where using. Then it was updated again so as not to conflict with the
Amazon (aStore) definition. I still got to work one up for Amazon China now that I think about it. Their site is wiggy.
Bear in mind that definitions I did early on might not be as optimized as they could be, since I hadn't been doing it that long. Working on these I've gradually been updating them when I learn cleaner way to structure the RegEx.