Cristian Darie is a software engineer with experience in a wide range of modern technologies. He is the author of numerous books, including his popular ASP.NET C# e-commerce tutorial, his Ajax and PHP tutorial, and his�search engine optimization�tutorial for PHP developers. Cristian studied distributed application architectures for his Ph.D, 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, www.CristianDarie.ro.
Karli Watson is the technical director of 3form.net, as well as a freelance IT specialist, author, developer, and consultant. For the most part, he indulges in .NET and related technologies and has written numerous books about them. He has extensive knowledge of programming database-driven websites and has authored the titles Beginning ASP .NET 2.0 E-Commerce, Beginning ASP.NET 1.1 E-Commerce, The Programmer's Guide to SQL, Professional C#, Second Edition, and Professional ASP.NET 1.0.