Google Refine is a power tool for working with messy data, cleaning it up, transforming it from one format into another, extending it with web services, and linking it to databases like Freebase.

The google-maps Emacs extension allows to display Google Maps directly inside Emacs.

In this article I present some special astronomical scripts created for Google Earth, Google Sky and Twitter. These 'hacks' are examples of the ways in which such tools can be used either alone, in on conjunction with online services. The result of a combination of multiple, online services to form a new facility is called a mash-up. Some of what follows falls into that definition. As we move into an era of online data and tools, it is the network as a whole that becomes important. Tools emerging from this network can be capable of more than the sum of their parts.

S-Bahn-Berlin kann Google (Maps)