Henry Laycock - Provides his biography and publications on ontology and semantics. - http://post.queensu.ca/~laycockh/index.html
Critical Ontology - Review of a method of doing philosophy, especially philosophical ontology. Propounded by the Indian philosopher Joseph Kaipayil. - http://www.criticalontology.com/
Varzi, Achille C. - Associate Professor, Columbia University - specializes in metaphysics and philosophy of logic. - http://www.columbia.edu/~av72/