I just noticed part one of a five part series of articles over at IBM developerWorks introducing Amazon S3 and Simple DB services, and working with them using Perl:
"In Part 1 of a five-part series, Ted Zlatanov explains the benefits and drawbacks of Amazon's Simple Storage Service (S3) and SimpleDB offerings when it comes to building a Web site. This visual tour explains the S3 and SimpleDB architectures and how to use them through practical examples; in this case, you'll use a Perl library to build a simple photo-sharing site."
As usual with developerWorks articles, there is a feedback form on the page.
Update (14/04/2009). Part two of five.