Everett's Relative-State Formulation of Quantum Mechanics: Describes Everett's attempt to solve the measurement problem by dropping the collapse dynamics from the standard von Neumann-Dirac theory of quantum mechanics. From the Stanford Encyclopedia.
Mangled Worlds Quantum Mechanics: Describes a variation on the many worlds interpretation in which the Born probability rule can be derived via finite world counting.
Many Worlds Quantum Theory: A collection of links to sites related to the many worlds interpretation of quantum mechanics
Many-Worlds FAQ: This FAQ shows how quantum paradoxes are resolved by the "many-worlds" interpretation or metatheory of quantum mechanics. This FAQ does not seek to prove that the many-worlds interpretation is the "correct" quantum metatheory, merely to correct some of the common errors and misinformation on the subject.
Measurement in Quantum Theory: Collapse of the wave function, role of the observer in QM; From the Stanford Encyclopedia, by Henry Krips.
Relational Quantum Mechanics: An interpretation of quantum theory which discards the notions of absolute state of a system, absolute value of its physical quantities, or absolute event; from the Stanford Encyclopedia of Philosophy by Federico Laudisa and Carlo Rovelli.