A recent O’Reilly article by Jerry Peek, co-author of Learning the Unix Operating System, explains why the command line, found in Unix and Unix-based operating systems like Mac OS X, can often times be more practical than using a graphical interface. Another recent article tackles using SSH on Mac OS X to set up a secure, wireless webcam. Finally, O’Reilly has published a comprehensive review of the PowerBook G4/667, covering everything from performance to Apple customer support.