Ryan Leavengood is credited with creating the first RubyGems project: www.rubygarden.org

RubyForge: www.rubyforge.net

ImageMagick: www.imagemagick.org

IPAdmin: ipadmin.rubyforge.org

Gemspec Reference on RubyGems Manuals: docs.rubygems.org/read/chapter/20

Filesystem Hierarchy Standard: www.pathname.com/fhs