Google Webmaster tools is a service that monitors and maintains a web presence in Google Search results. This is the official Python library that contains requirements and installation. The App engine, also included, serves to add an application like a third party. More information about Webmaster tools available at https://support.google.com/webmasters/answer/4559176?hl=en
Kasabi has just moved into public beta. The private beta is over, and Kasabi is openly ready and willing to become your data marketplace. This is similar to what the primates over at InfoChimps are doing: building a community around data sets and APIs. The Kasabi API collection feels like a first attempt at standardizing the task of designing an API for accessing a dataset.