Bill Wolff is an independent consultant, trainer, and architect specializing in Microsoft development technologies. His company, Agility Systems, is based in the Philadelphia area. Wolff ran the consulting firm Wolff Data Systems for 15 years and directed armies of consultants in the dot com world. He is founder and President of the philly.net user group, an INETA board member where he serves as Vice President, Speaker Bureau, and involved in several other user communities. Wolff was a contributing author on several books and writes articles for several journals. His certifications include trainer, systems engineer, developer, and Microsoft MVP for VB.NET.