This is a very simple ajax feedback form. just download the zip, extract, change two variables in the contact.php page.
You are ready to upload files in server. Just upload, your ajax feedback form is ready. Enjoy receiving feedback from visitors 
Professional Ajax by Nocholas C. Zakas, Jeremy McPeak, Joe Fawcett is a fantastic book on AJAX which is the common buzzword now a days.
Though late, at last this morning I finally started working on Ajax seriously. I know, I am too late to this field.
Its very interesting. I know ajax since more than 6 months. But I could not get started bcoz I always feel uneasy with Javascript. But from few days, I m getting much interest on Javascript and hence I started working on Ajax.
Today I simply made news recommendation script using ajax for my working project of The Weekly Utsyabhumi magazine (www.utsyabhumi.com).
They are satisfied with this.
I hope to make good progress on it very soon.
This book, AJAX and PHP::Building Responsive Web Application, is one of the best book I have as it discussed the technology not only in theoretically but also with all real life example.
Hello, I am The HungryCoder, my internet name, felicitating you for visiting my blog. Its a place of my freedom. I write about my works, my ideas, my thinking, my experiences and everything I like. Nothing will be happiest for me if your visit to my site comes to of any use to you. I am so open to receive your feedback about my site and anything :-). Please send mails to thcoder (at) gmail (dot) com
Projanmo