Linked from
The 13 pages that link to Mean-motion resonance, each with the reason it gives.
Kuiper beltBroader topic: The 3:2 resonance with Neptune defines the plutino population.
Grand Tack hypothesisRelated: Jupiter and Saturn enter resonance before their migration reverses.
Jupiter-family cometRelated: Resonances with Jupiter can protect or destabilize comet orbits.
FomalhautRelated: Resonant orbital interactions can shape debris belts and constrain unseen planets.