guitarLayers - guitarLayers is a professional macOS guitar learning software.
Gitarrero Beginner - Gitarrero Beginner is a multi-featured, and easy-to-use guitar school developed as a guide to help you learn guitar skills and play them comfortably.
Fachords - Fachords is an online site that provides many resources that you can use to take your guitar skills to the next level.
School Guitar - School Guitar offers you the opportunity to learn guitar skills by buying its interactive Learning Software that includes comprehensive lessons and guides to help you go beyond the beginner guitarist level.
Baglama Tuner - Baglama Tuner is a mobile application that baglama enthusiasts can use to tune baglama.
TrueFire - The Best Guitar Lessons Online Fast. Easy. Fun.