
xvi
For every set of apps, a Beyond Google section gives you a broad overview for some of the valuable
tools in the area offered by the Google competition.
This book uses the following typographical conventions:
Italic
Used to indicate new terms, URLs, lenames, le extensions, directories, and folders.
Constant width
Used to show code examples, verbatim searches and commands, the contents of les, and the
output from commands.
Pay special attention to notes set apart from the text with the following icons:
This icon indicates a tip, suggestion, or general note. It contains useful supplementary information or an
observation about the topic at hand.
This icon indicates a warning or note of caution.
The slider icons, found next to each hack, indicate the relative complexity of the hack:
Easy:
Intermediate:
Expert:
This book is here to help you get your job done. In general, you may use the code in this book in
your programs and documentation. You do not need to contact us for permission unless you’re
reproducing a signicant portion of the code. For example, writing a program that uses several
chunks of code from this book does not require permission. Selling or distributing a CD of examples
from O’Reilly books does require permission. Answering a question by citing this book and quoting
example code does not require permission. ...