Linked from
The 13 pages that link to Electromagnetic interaction, each with the reason it gives.
LeptonRelated: Only charged leptons couple directly to photons; neutrinos have no electric charge.
AtomRelated: Its attraction between electrons and nuclei binds atoms together.
Atomic physicsRelated: It binds electrons to nuclei and governs how atoms respond to light.
StrangenessRelated: It also conserves strangeness, unlike the weak interaction.
Atomic systemRelated: It binds electrons to nuclei and governs most atomic structure.