Danny Ayers is a freelance developer, technical author, and consultant specializing in cutting-edge Web technologies. He has worked with XML since its early days and got drawn into RSS development around four years ago. He is an active member of the Atom Working Group, the Semantic Web Interest Group, and various other Web-related community groups and organizations. He has been a regular blogger for several years, generally posting on technical or feline issues. Originally from Tideswell in the north of England, he now lives in a village near Lucca in Northern Italy with his wife, Caroline, a dog, and a herd of cats.

Andrew Watt is an independent consultant and computer book author with an interest and expertise in various XML technologies. Currently, he is focusing primarily on the use of XML in Microsoft technologies. He is a Microsoft Most Valuable Professional for Microsoft InfoPath 2003.