Ean Kingston says, first, the license of BSD is much more open than the Linux license. You are allowed to use it (or part of it) in your application and then sell your application. You need to acknowledge that parts of your application are BSD. If you look at the copyright notice of pretty much every OS around you will see the disclaimer (look for the phrase “Regents of the University of California”). It can be found in all versions of UNIX, Linux, and all versions Windows. It can also be found in IBM’s OS/2. My second argument in favour of BSD is simplicity. Unlike Linux, with it’s hundreds of distributions, BSD has 3 open source flavors. Read more.