Mark Birbeck is the founding director of x-port.net Ltd., the company behind formsPlayer, an XForms processor that fully implements the W3C's XForms specification. He is also the founder of Sidewinder, a company building a next-generation semantic web browser that seamlessly combines XForms with other languages such as SVG, MathML and X3D.He has nearly 30 years experience in software development, and has contributed to books and written articles on XForms, RDF, and XML.He is an Invited Expert on both the XForms and HTML W3C Working Groups where he is particularly involved in the development of XHTML 2, a semantic-based version of XHTML. His most recent work for the W3C has involved proposing and developing RDF/A, a new and simpler way to mark up RDF in documents without having to use RDF/XML.His blog focuses on building a new generation of internet applications, and a number of entries relate to Ajax, XForms, and the use of declarative mark-up.

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