eBook Pragmatic Ajax: A Web 2.0 Primer written by Justin Gehtland, Ben Galbraith, Dion Almaer of Pragmatic Programmers is available for free download from rapidshare. It’s not just another book on Ajax. It’s “Pragmatic Ajax”: a concise, complete look at a new way of envisioning and implementing browser-based applications. Ajax turns static web pages into interactive applications.... 

eBook Ajax for Dummies written by Steve Holzner Ph.D. of Wiley is available for free download from rapidshare. Ajax is short for “Asynchronous JavaScript+CSS+DOM+XMLHttpRequest.” Even if you weren’t intimidated before, that tidbit is probably enough to make you reach for the Excedrin. Just reach for Ajax For Dummies instead. With screen shots, actual code and explanations, and live Web sites...