Wireless Hacks, Second Edition -- Completely revised and updated, this second edition includes over 30 brand new hacks, major overhauls of over 30 more, and timely adjustments and touchups to dozens of others introduced in the first edition. Wireless Hacks offers you 100 ways to answer real-life networking needs with direct solutions.

Java Enterprise in a Nutshell, Third Edition -- This practical guide for enterprise Java developers has been modified to cover the new Java 2 Enterprise Edition 1.4, offering a clear understanding of how to apply the new APIs, use the latest open source Java tools, and learn the capabilities and pitfalls in J2EE 1.4. Includes new chapters, among others, on Ant, Cactus, Hibernate, Jakarta Struts, JUnit, security, XDoclet, and XML/JAXP.

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The Future Is Calling -- O'Reilly's premiere Emerging Telephony Conference will be held January 24-26 in San Francisco. If you want to know how communication will change, what technologies will change it, and who's building the application innovations that will become products, come to the one place you'll find the answers: ETel. Check out the conference schedule and be sure to register before early registration ends on December 4th.

Avoid Common Pitfalls in Greasemonkey -- Mark Pilgrim walks through a major security concern that prompted the architectural changes in Greasemonkey 0.5, and then provides solutions to ten common pitfalls to avoid when writing Greasemonkey scripts. Mark is the author of Greasemonkey Hacks.

Hacking Swing: Translucent Windows -- All Java windows are absolutely rectangular, so you can forget about creating a nice Winamp-like window for your Swing app, right? Wrong. In this excerpt from Swing Hacks, authors Joshua Marinacci and Chris Adamson show how you can use some imaging trickery to create arbitrarily shaped windows with Swing.

Spam from Iraq -- Brian McWilliams writes about the sudden growth of Iraq's IP space, and a surge in spam emanating from it. Part of the problem is that Iraq's newly created ISPs have yet to issue acceptable-use policies, leaving open the possibility for a spam industry to arise within the country. Brian is the author of Spam Kings.

Open Source Programming Certificate Series Special -- With beginning to intermediate courses in Perl, Java, PHP, MySQL, and the Linux/Unix file system, our Open Source Programming Certificate Series is designed to give you a breadth of real-world experience. Upon completion of the series, you'll receive a Certificate of Professional Development from the University of Illinois Office of Continuing Education, a plus for any resume. Enroll in all five courses and receive a $300 instant rebate. Offer expires November 30th.