Detour - Immersive audio walks, now in 17 cities
guitarLayers - guitarLayers is a professional macOS guitar learning software.
Guides by Lonely Planet - Explore city guides curated by experts.
Fachords - Fachords is an online site that provides many resources that you can use to take your guitar skills to the next level.
GuruWalk - GuruWalk is a platform to connect travelers (walkers) with local free walking tour guides (gurus), democratizing access to culture and promoting local economies, present in more than 100 countries and thousands of destinations.
TrueFire - The Best Guitar Lessons Online Fast. Easy. Fun.