Why? Check this out:

  • Simplicity
    • List interface:2016-02-24-145849_1366x768_scrot
    • Bookmarking interface:2016-02-24-140756_1366x768_scrot
    • No ads
  • Price
  • Safety
    • Rock solid since I started using it in 2012
    • Backups in multiple portable formats
  • Privacy & security
  • Access via basically any means: browser extensions, JavaScript widgets, apps and API
  • Extensive FAQ
  • Likely to survive for long because of a simple, sustainable business model

Other than being a happy customer I am in no way affiliated with Pinboard.