Free Software offers the freedom to run the program for any purpose. Free Software provides the freedom to study how the program works, and adapt it to your needs. Free Software is freely distributable - you can legally offer it to your family, friends and business associates, and install it on as many machines as you wish. Free Software also offers you the unique opportunity to improve the software and redistribute those improvements.
Free software utilizes a transparent method of software development which has peer-review as one of it's many benefits, with zero vendor lock-in as another. With the opensource transparency of process comes fast bug and security fixes due at least in part to it's many-eyed approach. For more information regarding Free Software, see the
Free Software Foundation.