Bogdan has a strong background in Computer Science holding a Master and Bachelor Degree at the Automatic Control and Computers Faculty of the Politehnica University of Bucharest, Romania and also an Auditor diploma at the Computer Science department at Ecole Polytechnique, Paris, France. His main interests cover a wide area from embedded programming, distributed and mobile computing and new web technologies. Currently, he is employed as an Alternative Channels Specialist at Banca Romaneasca, Member of National Bank of Greece where he is responsible for the Internet Banking project and coordinates other projects related to security applications and new technologies to be implemented in the banking area. Cristian Darie is a software engineer with experience in a wide range of modern technologies, and the author of numerous books, including his popular AJAX and PHP tutorial by Packt, his ASP.NET E-Commerce tutorial, by APress and his forthcoming SEO tutorial for PHP developers by Wrox Press. Cristian is studying distributed application architectures for his PhD, and is getting involved with various commercial and research projects. When not planning to buy Google, he enjoys his bit of social life. If you want to say 'hi', you can reach Cristian through his personal website at http://www.cristiandarie.ro.