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Dave Johnson is an experienced software developer, technology enthusiast, and expert in blog technologies. He started blogging in 2002 using Java-based bloggingsoftware that he developed called Roller. Roller now drives the ground-breaking employee blogs at Sun Microsystems, is used by thousands of bloggers on JRoller.com and other sites, and is a successful open source project. Dave nowworks at Sun where developing Roller and promoting blog technologies is his fulltime job. He lives in Raleigh, North Carolina.