Rich Tretola (Indianapolis, IN) is a programmer who specializes in developing rich internet applications using Flash and Flex with Java (Hibernate) for data persistence and the Cairngorm framework. He has written a number of articles on Flex, and his most recent thoughts can be found on his Flex website, EverythingFlex.com.
Simon Barber (Cape Town, South Africa) is a web developer and founder of ThoughtFaqtory, where they develop rich internet applications for clients large and small. Simon is well-known in the Flex community and has been working with the technology since its earliest alphas.
Renaun Erickson (Las Vegas, NV) is a RIA developer specializing in Flex, ColdFusion and PHP. He is an Adobe Community Expert and active in the community through his popular blog and the Las Vegas Adobe User Group.