There are many misconceptions about free and open source software, especially in more traditional enterprise environments. There is a lot of FUD around the impact that it has on the control and profit that can be achieved when compared to proprietary software. It can be difficult to find information about how to incorporate free software into a business, how to build a business based on free software, or even how to embark on a solo career as a free software developer. I will dispell some of these misconceptions, provide you with the ammunition to defend free software principles, and provide you with the basic knowledge required to start capitalizing on free software at your own company or for your own developer career.