Expert Tips for Sending Spiders Out on the Web
O'Reilly Releases "Spidering Hacks"
Sebastopol, CA--Many people will tell you that you can always tell a
spider bite because it leaves two puncture wounds. Moreover, spiders are
known to drink moisture from the lips of sleeping humans, and not all
spiders are poisonous. In fact, all of these statements are false. Google
the words "spider myths" and you'll find the Spider Myths Site, where
spider expert Rod Crawford debunks these popular beliefs and many others.
For example, you'll learn that while few spiders are poisonous (
mushrooms are poisonous), most are venomous, but they seldom bite. If, however, your
need to keep current on spider myths is so pressing that you want
up-to-the-minute notifications of any additions to the site, you'll need
to send out a spider of your own. To learn about this kind of spider,
dive into "Spidering Hacks" (O'Reilly, US $24.95), written by spidering
experts Kevin Hemenway and Tara Calishain.
"Spidering Hacks" takes you to the next level in Internet data
retrieval--beyond search engines--by showing you how to create spiders and
bots to retrieve information from your favorite sites and data sources.
"If you've ever had any desire to get a certain piece of information on a
web page in a different way, like a stock quote though email or product
prices compared amongst your favorite sites, then this book is going to
give you techniques on how to do so," explains coauthor Hemenway." You'll
no longer feel constrained by the way host sites think you want to see
their data presented--you'll learn how to scrape and repurpose raw data so
you can view in a way that's meaningful to you."
Written for developers, researchers, technical assistants, librarians, and
power users, "Spidering Hacks" provides expert tips on spidering and
scraping methodologies. The book begins with a crash course in spidering
concepts, tools (Perl, LWP, out-of-the-box utilities), and ethics (how to
know when you've gone too far: what's acceptable and unacceptable). Next,
readers will collect media files and data from databases. Then they'll
learn how to interpret and understand the data, repurpose it for use in
other applications, and even build authorized interfaces to integrate the
data into their own content.
By the time they've finished the book readers will be able to:
-Aggregate and associate data from disparate locations, then store and
manipulate the data as desired
-Gain a competitive edge in business by knowing when competitors'
products are on sale, and comparing sales ranks and product placement
on e-commerce sites
-Integrate third-party data into their own applications or web sites
-Make their own sites easier to scrape and more usable to others
-Keep up-to-date with favorite comics strips, news stories, stock tips,
and more without visiting the site every day
"If you've ever been interested in pulling information off the Web, but
you have limited experience with Perl scripts, this book will give you
dozens of examples to play with, from the very useful to the downright
weird," says coauthor Calishain. "Even more experienced Perl
programmers will get some ideas from the many different sources and
techniques in this book."
Like the other books in O'Reilly's popular Hacks series, "Spidering
Hacks" delivers 100 industrial-strength tips and tools from experts to
help readers master this technology. If you're interested in data
retrieval of any type, this book provides a wealth of data for finding
a wealth of data.
Additional Resources:
Complete information about O'Reilly's new Hacks Series can be found at:
http://hacks.oreilly.com/ The article, "How to Become a Hacker," by Eric S. Raymond may be read
in full at:
http://www.oreillynet.com/pub/a/oreilly/hacks/news/0103_raymond.html Several sample spidering hacks including "Downloading MP3s from a
Playlist," "Checking Blogs for New Comments," and "Robot Karaoke" are
available free online at:
http://www.oreilly.com/catalog/spiderhks/chapter/index.html For more information about the book, including Table of Contents, index,
author bios, and samples, see:
http://www.oreilly.com/catalog/spiderhks/ For a cover graphic in JPEG format, go to:
ftp://ftp.ora.com/pub/graphics/book_covers/hi-res/0596005776.jpg Spidering Hacks
Kevin Hemenway and Tara Calishain
ISBN 0-596-00577-6, 402 pages, $24.95 US, $38.95 CA
order@oreilly.com 1-800-998-9938
1-707-827-7000
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[ November 03, 2003: Message edited by: Jason Menard ]
