The Metaphysics Research Lab - Developers of the axiomatic theory of abstract objects and relations.Two Contemporary Approaches to Transcendental Arguments - Karl-Otto Apel and Zeljko Loparic on their transcendental arguments in critical relationship with other philosophical trends of the age.
Metaphysics, Multiple Meanings - This site distinguishes popular and academic metaphysics, and provides links related to each.
Why Does Anything Exist? - The zero ontology
Probabilistic Causation - Designates a group of philosophical theories that aim to characterize the relationship between cause and effect using the tools of probability theory.
Causal Processes - Bertrand Russell, Wesley Salmon, and conserved quantities. By Phil Dowe for The Stanford Encyclopedia of Philosophy.
Existence - Survey article from the Stanford Encyclopedia, by Barry Miller.
The Metaphysics of Blue - On the nature of consciousness - looking for soul in a soulless world.
Metaphysics of Quality - Robert M. Pirsig deals with the fundamentals of existence and attempts to provide a more coherent system for understanding reality than current paradigms allow.
The Hole Argument - The hole argument is an attempt to illustrate how spacetime substantivalism causes errors in a large class of spacetime theories. From the Stanford Encyclopedia by John D. Norton.
20th World Congress of Philosophy: Metaphysics - Proceedings of the 20th WCP, with an archive of papers contributed in Metaphysics.
Philosophy of Time - An essay on the philosophy of time.
Big Bang Philosophy - Exploring the consequences of a finite universe.
Bohm, Bell, and Boom! Quantum Mechanics and the End of Modern Dualism - From History and Philosophy of Science, Fall, 1997. By Dr. Ess.
Concepts of Person and Self - Links to resources including bibliographies, journals, online texts, and institutions. Maintained by Professor Shaun Gallagher, Philosophy and Cognitive Science, Canisius College.
The Japan Internet Center for Process Studies - Information about process metaphysics.
Pete Mandik's Objectivity Home Page - A resource for those interested in the philosophy of objectivity and subjectivity.
Metaphysics Topics Page - Metaphysics links from Episteme Links.
Color - Metaphysical and epistemological accounts of color. From the Stanford Encyclopedia, by Barry Maund.
Time Travel and Modern Physics - The paradoxes inherent in the idea of time travel are explained in the context of modern physics. From the Stanford Encyclopedia, by Tim Maudlin.
SOSIG: Metaphysics - Metaphysics resource page from the Social Science Information Gateway.
Suppositions - Speculations about infinity, oscillating universes, antimatter worlds, "eternal" palindromes, and the Big Bang.
Naive Metaphysics: A Theory of Subjective and Objective Worlds - Supporting material for the book written by Geoffrey Klempner. Two extracts are provided; the preface, which explains the unusual circumstances and goals the author had whilst writing the book; and the first chapter, which consists of a long meditation on two problems of existence.