We have designed and implemented the Google File System, a scalable distributed file system for large distributed data-intensive applications. It provides fault tolerance while running on inexpensive commodity hardware, and it delivers high aggregate performance to a large number of clients.
Googsystray is a system tray app for Google Voice, GMail, Google Calendar, Google Reader, and Google Wave. The idea is to be able to keep track of all that stuff without having to keep a bunch of browser tabs open, or constantly checking them. It notifies on new messages, alerts, etc., and provides basic services quickly (Reading or sending a new SMS message, or marking an email read, for example.)