This chapter provided an introduction into the many ways to interface with, integrate, talk to, and otherwise use Google technologies in your Web and desktop applications. You can create your own Google Talk client or use the Google Checkout in your e-commerce Web applications. Google has attempted to make interfacing with its technologies as simple as possible by creating programming APIs and by using standard open protocols. For additional information on these and other Open Source projects or just to see a list of Open Source programming projects at Google, visit http://code.google.com/projects.html. With this foundation for innovation, it’s no wonder that the Google Laboratories are full of upcoming and interesting projects, which are discussed in the next and final chapter.