Do careers exist promoting Ubuntu/FOSS?

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http://www.linuxforums.org – Community, I'm graduating from the University of Arkansas in May with a Master's in Management Information Systems. I have a BS in Computer Science and an Assc. in Engineering. I've been applying for jobs regarding networking and server maintenance lately, but I've started to realize that my interest is actually elsewhere. As a user of Linux since Dapper Drake, I've come to have an interest in FOSS as well as Linux maintenance in general. I've started to wonder - is there a career in marketing Linux/Ubuntu/FOSS to businesses, consulting to install such software, or working to sway software m (HowTos)