The home page for the Google Web APIs is www.google.com/apis. That page has links to documentation, FAQs and registration forms that are necessary for an individual key.
The SOAP::Lite module for Perl is available via CPAN (www.cpan.org). Complete (and overwhelming) documentation, including examples, can be found at www.soaplite.com.
Finally, the home page for Amazon Web Services (AWS) is www.amazon.com/gp/browse.html?node=3435361. From that page, you can register for an ID, download and read documentation (including code examples in a variety of languages) and participate in forums for AWS developers. You also can find information about the Alexa Web search platform, which has different restrictions on its data from Google. A frequently updated Weblog with news and ideas about AWS is at aws.typepad.com.