Keeping an eye on our friends at Amazon since a little while ago. It's an Amazon-Eat-Buy-Button World Out There It had happened without warning. Just ask the authors in the U.K., well published by major houses, who woke up in 2008 to find their Buy Buttons had gone missing. No "pardon the inconvenience" e-note from Seattle, just a quiet severing of ties with a few million customers. It happened he