Make sure that the material that you put on this system is allowed to be freely published. The content will be freely available, so be careful of licensing and intellectual property issues.
You will need to install Subversion software to make updates to the "Repository" contents.
- Windows: http://tortoisesvn.net/
- OSX: http://versionsapp.com/
- Linux: install subversion whatever way you like
- debian: sudo apt-get install subversion
- redhat: sudo yum install subversion
- Most platforms and free: http://www.smartsvn.com/
This URL can also be used to distribute files directly.