Enterprise Services Architecture outlines a disciplined and structured approach to understanding how today's enterprise applications will make use of web services. Aimed at senior management and IT professionals, the book presents a forward-looking architecture that can meet future development challenges with ease and agility. This book was commissioned by SAP, but we're making it available to the general public because we believe the information can help the marketplace come to grips with the architectural revolution that is underway. Sample Chapter 1, Concepts and Philosophy, is available online.

Call for Participation: Emerging Technology Conference -- What alpha geeks do today can radically alter the future of technology for everyone tomorrow. O'Reilly's Emerging Technology Conference (ETech) frames the ideas, projects, and technologies that the alpha geeks are thinking about, hacking on, and inventing right now into a coherent picture that we can build upon. If you've got your eye on nascent technological transformations, send us a proposal (due September 27), and join us in San Diego, California March 14 - 17 for ETech 2005.

Your O'Reilly Account: New, Single Sign On -- O'Reilly customers and guests now have a single address and one password to access all things O'Reilly, from oreilly.com and Safari Bookshelf to all of the O'Reilly Network sites and DevCenters. When possible, we've consolidated your prior, separate accounts into one new account. Logging into the new system is quick and easy; details on how to do it have been emailed to you, and you can read more about O'Reilly's single sign on in Tony Stubblebine's weblog.

Safari Gets Bigger and Better -- There are now more than 2,000 books from the industry's leading technical publishers available on Safari Bookshelf. As the library grows, so does its functionality: searches are powerfully precise and as broad or specific as you wish; and now, with a Safari Max subscription, you can download chapters to read offline. Safari will help you save time, reduce errors, keep current, and save more money than ever with up to 35% off print copies of your favorite books. If you haven't yet gone on Safari, try a free trial subscription.

Walking Through an RSS 1.0 Document -- RSS (Rich Site Summary) is a method of describing web content that is available for syndication. Find out what an actual RSS document looks like in Chapter 6 of Content Syndication with RSS. And get a free trial to read this and four other O'Reilly books on Safari.

Gastronomy for Geeks -- Pizza, Twinkies, and Jolt are geek haute cuisine for a stereotypical few. Many of you know the difference between au jus and baba ghanoush, and that Thai shish kabob isn't called sauté. So, you Geek Gourmets, come share your favorite recipes, and see what your peers are cooking.

The Software Paradigm Shift -- Tim O'Reilly says the operating system no longer matters. Applications now live above the level of a single device or OS. "We're at the end of the personal-computing era. We're at the beginning of something profoundly different." Listen in on this IT Conversations interview, and find other interviews with Tim at tim.oreilly.com.

A PHP Web Services Client -- Web services promise to make your life easier as more companies are beginning to allow access to their data through Web services APIs. Learn how to write a PHP application to Amazon's Web services API from Adam Trachtenberg, coauthor of PHP Cookbook.

Introduction to Web Services -- Web services are all about enabling computers to communicate with each other, opening up services and data. Built on open standards, Web services offer convenient ways to open up the functionality of your applications to other applications. Chapter 1 of Programming Web Services with Perl provides a thorough introduction--read it before you start programming Web services. Get a free trial to read this and four other O'Reilly books on Safari.

Amazon Hacks is a collection of real-world tips, tricks, and full-scale solutions to practical uses of Amazon.com and the Amazon Web Services API. If you have an Amazon hack you'd like to contribute, visit hacks.oreilly.com.

Sift, Stir, Code: O'Reilly Cookbooks -- Looking for the right ingredients to solve a programming problem? Look no further than O'Reilly Cookbooks. Each cookbook contains hundreds of programming recipes presented in a special Problem/Solution/Discussion format, and includes hundreds of scripts, programs, and command sequences you can use to solve specific dilemmas. Get your daily recipes and view our complete list of Programming Cookbooks for Geeks.