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Written for developers, researchers, technical assistants, librarians, and power users, Spidering Hacks provides expert tips on spidering and scraping methodologies. You'll begin 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, you'll collect media files and data from databases. Then you'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 your own content. By the time you finish Spidering Hacks, you'll be able to:

• Aggregate and associate data from disparate locations, then store and manipulate the data as you like
• 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 your own applications or web sites
• Make your own site easier to scrape and more usable to others
• Keep up-to-date with your favorite comics strips, news stories, stock tips, and more without visiting the site every day

Like the other books in O'Reilly's popular Hacks series, Spidering Hacks brings you 100 industrial-strength tips and tools from the experts to help you 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..
Price: $7.34 [Notify me when price goes down.]

Perl soared to popularity as a language for creating and managing web content, but with LWP (Library for WWW in Perl), Perl is equally adept at consuming information on the Web. LWP is a suite of modules for fetching and processing web pages.

The Web is a vast data source that contains everything from stock prices to movie credits, and with LWP all that data is just a few lines of code away. Anything you do on the Web, whether it's buying or selling, reading or writing, uploading or downloading, news to e-commerce, can be controlled with Perl and LWP. You can automate Web-based purchase orders as easily as you can set up a program to download MP3 files from a web site.

"Perl & LWP" covers:

Understanding LWP and its design

Fetching and analyzing URLs

Extracting information from HTML using regular expressions and tokens

Working with the structure of HTML documents using trees

Setting and inspecting HTTP headers and response codes

Managing cookies

Accessing information that requires authentication

Extracting links

Cooperating with proxy caches

Writing web spiders (also known as robots) in a safe fashion

"Perl & LWP" includes many step-by-step examples that show how to apply the various techniques. Programs to extract information from the web sites of BBC News, Altavista, ABEBooks.com, and the Weather Underground, to name just a few, are explained in detail, so that you understand how and why they work.

Perl programmers who want to automate and mine the web can pick up this book and be immediately productive. Written by a contributor to LWP, and with a foreword by one of LWP's creators, "Perl & LWP" is the authoritative guide to thispowerful and popular toolkit.

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Price: $22.52 [Notify me when price goes down.]

Praise for Cindy Ross's A Woman's Journey:

"Ross lets readers into her heart."­­Publishers Weekly

"A beautiful book, a wonderfully fascinating narrative "­­Annie Dillard

A true account of a family's five-year adventure in the untamed wilderness of the American Rockies

The Continental Divide Trail, a rugged, 3,100-mile footpath running along the crest of the Rocky Mountains from Canada to Mexico, is infamous for its tricky mountain passes and snowy traverses. In 1993, Cindy Ross, her husband, and their two toddlers, ages one and three, set out together on the Trail. Using llamas as kid-carriers and packers, they successfully hiked the entire Trail over the next five summers, covering the last 700 miles on tandem mountain bikes in 1998.

In Scraping Heaven, Cindy Ross­­the author of four critically acclaimed books­­deftly interweaves evocative descriptions of the landscape with dramatic accounts of sudden snowstorms, gale winds, and wildlife encounters. Through it all, her intimate reflections on marriage, family, and children provide contrapuntal depth and interest far beyond the high Rocky Mountain peaks.

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Price: $325.00 [Notify me when price goes down.]

Web 2.0 architecture opens up an incredible number of options for flexible web design, creative reuse, and easier updates Along with covering the key languages and techniques of Web 2.0, this unique book introduces you to all of the technologies that make up Web 2.0 at a professional level. Throughout the chapters, you'll find code for several example applications built with popular frameworks that you'll be able to utilize.

You'll first explore the technologies that are used to create Web 2.0 applications. This includes an in-depth look at XHTML, Cascading Style Sheets (CSS), JavaScript, and Ajax. Next, you'll gain a better understanding of the protocols and formats that enable the exchange of information between web clients and servers. Ultimately, you'll discover exactly what you need to know about server-side programming in order to implement new ideas and develop your own robust applications.

What you will learn from this book

• How Web 2.0 applications are developed
• New ways to get the major client-side technologies to work together
• The new class of emerging tools
• All about HTTP and URIs, XML, syndication, microformats, and Web Services
• Techniques for implementing and maintaining your URI space
• How to serve XML over HTTP
• Steps for building mashups to aggregate information from multiple sources
• Methods for enhancing security in your applications

Who this book is for

This book is for professional developers who have a basic understanding of HTML, CSS, JavaScript, and XML.

Wrox Professional guides are planned and written by working programmers to meet the real-world needs of programmers, developers, and IT professionals. Focused and relevant, they address the issues technology professionals face every day. They provide examples, practical solutions, and expert education in new technologies, all designed to help programmers do a better job.

This book is also available as part of the 4-book JavaScript and Ajax Wrox Box (ISBN: 0470227818). This 4-book set includes:

• Professional JavaScript for Web Developers (ISBN: 0764579088)
• Professional Ajax 2nd edition (ISBN: 0470109491)
• Professional Web 2.0 Programming (ISBN: 0470087889)
• Professional Rich Internet Applications: Ajax and Beyond (ISBN: 0470082801)

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Price: $23.75 [Notify me when price goes down.]

Enslaved mariners, white seamstresses, Irish dockhands, free black domestic servants, and native-born street sweepers all navigated the low-end labor market in post-Revolutionary Baltimore. Seth Rockman considers this diverse workforce, exploring how race, sex, nativity, and legal status determined the economic opportunities and vulnerabilities of working families in the early republic.

In the era of Frederick Douglass, Baltimore's distinctive economy featured many slaves who earned wages and white workers who performed backbreaking labor. By focusing his study on this boomtown, Rockman reassesses the roles of race and region and rewrites the history of class and capitalism in the United States during this time.

Rockman describes the material experiences of low-wage workers -- how they found work, translated labor into food, fuel, and rent, and navigated underground economies and social welfare systems. He also explores what happened if they failed to find work or lost their jobs. Rockman argues that the American working class emerged from the everyday struggles of these low-wage workers. Their labor was indispensable to the early republic's market revolution, and it was central to the transformation of the United States into the wealthiest society in the Western world.

Rockman's research includes construction site payrolls, employment advertisements, almshouse records, court petitions, and the nation's first "living wage" campaign. These rich accounts of day laborers and domestic servants illuminate the history of early republic capitalism and its consequences for working families.

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Price: $25.00 [Notify me when price goes down.]