Ultimate Guitar: The Story of the Biggest Tab Catalog In the World | by Sasha Smirnova | Medium
Ultimate Guitar Pro Review: Is it worth it? - Guitar Chalk
Ultimate-guitar.com has some of the worst design ever in order to make you download their app. I hate it and will always when possible get my chords from any other source. :
GitHub - ultimate-guitar/Tabdown: Tabdown is an open mark-up language for text tabs & chords.