Books about Google’s mapping services continue to appear. Beginning Google Maps Applications with PHP and Ajax is a new book about producing web applications using the Google Maps API and your data, whether your data is small and simple or big and complicated. It looks like the book scales upward beyond basic map hacks. The authors have a blog with more information, updates and a sample chapter. Slashdot has a review. Via Google Maps Mania.

• Buy Beginning Google Maps Applications with PHP and Ajax at Amazon.com