Google Web APIs
Tinha faltado o link no podcast... Taí pra vocês. As APIs do Google usam SOAP e WDSL. Divirtam-se.

Amazon Web Services provides developers with direct access to Amazon's robust technology platform. Build on Amazon's suite of web services to enable and enhance your applications. We innovate for you, so that you can innovate for your customers. Browse our reference applications to see the possibilities!
Mike Frumin from Eyebeam has released VGMap. It lets you overlay Flash vector art on top of a Google Map. It's very cute (see the NYC Subway map demo app) and represents another step along the path that takes GIS technology from specialized desktop suites to general purpose web apps.