Mobile Web Development

Mobile Design and Development: Practical Concepts and Techniques for Creating Mobile Sites and Web Apps

Mobile Web Development: Building mobile websites, SMS and MMS messaging, mobile payments, and automated voice call systems with XHTML MP, WCSS, and mobile AJAX

Professional iPhone and iPod touch Programming: Building Applications for Mobile Safari

Building iPhone Apps with HTML, CSS, and JavaScript: Making App Store Apps Without Objective-C or Cocoa

CSS

Web Standards Solutions: The Markup and Style Handbook, Special Edition

CSS Mastery: Advanced Web Standards Solutions, Second Edition

Bulletproof Web Design: Improving flexibility and protecting against worst-case scenarios with XHTML and CSS (2nd Edition)

The Zen of CSS Design: Visual Enlightenment for the Web

The Art and Science of CSS

Javascript & AJAX

Simply JavaScript

DOM Scripting: Web Design with JavaScript and the Document Object Model

Ajax Bible

Bulletproof Ajax

Ajax Hacks: Tips & Tools for Creating Responsive Web Sites

API & Web Services

Facebook Cookbook: Building Applications to Grow Your Facebook Empire

Twitter API: Up and Running: Learn How to Build Applications with the Twitter API

Beginning Google Maps Mashups with Mapplets, KML, and GeoRSS: From Novice to Professional (Beginning from Novice to Professional)

Web Development Solutions: Ajax, APIs, Libraries, and Hosted Services Made Easy

PHP Web 2.0 Mashup Projects: Practical PHP Mashups with Google Maps, Flickr, Amazon, YouTube, MSN Search, Yahoo!: Create practical mashups in PHP grabbing ... MSN Search, Yahoo!, Last.fm, and 411Sync.com