What is an open source evangelist?

When people learn that I work as an open source evangelist (focusing on syslog-ng and sudo), they often ask me what it’s like to represent such well-known names in the Linux world. My short answer: It[he]#039[/he]s good! I am part of research and development, so it is never boring. I feel that I make an impact when people implement what they learn from me and when the feedback I collect from users influences the development of the product.