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Hacks 21-49
If you've just arrived from
Chapter 1
and think that you have more than enough information to Google
yourself silly, hold on to your hat. Now you'll put
into high gear all that you've learned about the ins
and outs of Googling. In this chapter you'll meander your Google
neighborhood, range farther across the Web, dig deeper into
individual sites, twist and recombine your queries, squeeze the last
drop of results out of every search, and even go beyond the bounds of
Google's indexall without wearing out your
fingers.Because you'll get your computer to do the
lion's share of the work for you.This chapter hacks Google programmatically. Through bite-sized
programs, we'll introduce you to the kind of
trawling, crawling, and recombination that's
possible with just a few lines of code. And it's all
possible thanks to something called the Google APIthat's
Application Programming Interface, or Google for computers.In April 2002, Google announced an alternate interface to the
friendly search box you see on Google.com. They opened up their index
to anyone with a little programming know-how and a reasonable amount
of patience. Initially, this wasn't much to write
home about. Some of the earliest applications simply Googled and
incorporated the results into a web pageso-called Google boxes
[Hack #22] .
But as more people experimented with the
API, the variety of applications grew from the
marginally interesting to the seriously useful. And so was born the
book that you're holding in your hands.This chapter and the rest of this book contain hacks that take
advantage of this alternate interface. Some simply automate the sorts
of tasks that might take you forever and a day to do by hand. Others
run automatically to keep tabs on searchesand resultsof
interest to you. And still others provide a
bird's-eye view of your results in context, which is
just not possible by eyeballing any number of results pages.
