Enterprise Services Architecture outlines a disciplined and structured approach to understanding how today's enterprise applications will make use of web services. This book, aimed at senior management and IT professionals, presents a forward-looking architecture that can meet future development challenges with ease and agility. This book was commissioned by SAP and will be used by SAP to promote their products. We're making it available through our retailers because we believe the information in it is of interest to readers outside of SAP's immediate sphere. Sample Chapter 1: Concepts and Philosophy is available online now.

Safari Bucks Industry EBook Trend -- This EContent Magazine article explores why Safari Bookshelf, the premier electronic reference library for IT professionals and programmers, is succeeding in the ebooks market where so many others have failed. If you're not familiar with Safari, try a free trial subscription.

Tightening Python's Grip in Enterprise IT -- In this OE Trends interview, Alex Martelli talks about how Python scripting can extend the integration capabilities of Win32, ASP.NET, Java, and C/C++. Alex is the author of Python Cookbook and Python in a Nutshell.

JDO or CMP? How do these two technologies compare? Craig Russell and David Jordan offer a summary of the key trade-offs in using JDO versus CMP for your enterprise application, in this excerpt from their book, Java Data Objects.

Your Open Source Plan -- This article in a recent issue of CIO Magazine makes a strong case for open source's place in the enterprise with this warning: "Any CIO without an open source strategy in 2003 will be paying too much for IT in 2004." Learn what executives and managers are doing to incorporate open source technologies in their businesses at this summer's O'Reilly Open Source Convention.

Spam Busters -- Richard Koman talks to members of ActiveState's new Anti-Spam Task Force, a blue-ribbon panel of spam busters who've come together to develop new ways of making anti-spam software more effective and appropriate at the enterprise level. ActiveState is an O'Reilly affiliate.

Top Five Open Source Packages for System Administrators--AEleen Frisch offers the first installment in a five-part series on the most useful open source administrative tools. We begin the countdown with number five, Amanda, a network-based enterprise backup utility. AEleen is the author of Essential System Administration, 3rd Edition.