JavaScript step by step / Steve Suehring, Microsoft, 2008
Here is a good introduction to Javascript. It is published by Microsoft, and recommends Visual Studio for an IDE, but Firefox for debugging of course. The CD includes a pdf version of the book.
C# 2008 for programmers / Paul J. Deitel, Harvey M. Deitel, Prentice Hall, 2009
Here are 1000+ pages packed with good tutorial material on C#, ASP.NET, WCF, WPF, and Silverlight.
Adobe ColdFusion 8 Web application construction kit / Ben Forta, Peachpit Press, 2008
If you are using ColdFusion, this looks like a useful book.
The essential guide to Dreamweaver CS3 with CSS, Ajax, and PHP / David Powers, Friends of ED, 2007
Here is a good introduction to web app programming using Dreamweaver. 720 pages, mostly well written text, with a few pictures of dialogs. Not many code examples. Recommended.
Professional Web 2.0 programming / Eric van der Vlist, Wiley, c2007
Here is a readable, current book about the web applications stack. It also looks at new projects which are likely to be part of the toolkit in the future.
Professional iPhone and iPod touch programming : building applications for Mobile Safari / Richard Wagner. Wiley, c2008
Here’s how to develop apps for the iPhone. They run in the context of the Safari browser, so you are using HTML, CSS, JavaScript, and AJAX. If you are targeting other smart phones, lots of this info will apply.
Ajax in action / Dave Crane, Eric Pascarello; Manning, c2006.
This is the best book on AJAX programming that I have seen. It used to be that Javascript was for small and crufty hacks, but now full apps run in the browser environment. The code needs to be structured to be maintainable. This well written and engaging book looks at web app design from all angles.
Professional Python frameworks : Web 2.0 programming with Django and TurboGears / Dana Moore, Raymond Budd, William Wright.
If you are developing web applications using Python you will want to use a framework so you are not re-implementing all the ‘glue’ that is common to all web apps and so you have a clear project structure to work around. This book is an excellent introduction to two frameworks, TurboGears and Django.
More info is at the Library of Congress