See also:

• Reference: Knowledge Management: Knowledge Representation: Ontologies  (67)
• Society: Philosophy: Metaphysics: Ontology  (16)

• Emergent Ontologies - A lecture by Gregory Ulmer, University of Florida, August 2000, part of the Open Philosophy series at European Graduate School.
• Logic and Formal Ontology - Article by Barry Smith discussing Husserl's Logical Investigations.
• Logic and Sachverhalte - Article by Barry Smith, discussing a view of logic which sees it as the science of states of affairs (Sachverhalte).
• Logical Properties - Patricia Blanchette reviews this book by Colin McGinn. From Notre Dame Philosophical Reviews.
• Meaning and the Problem of Universals - Subtitled a `Kantian-Friesian approach', an article by Kelley L. Ross. A nice historical survey of the problem of universal, but a bit weak on particular theories (eg. Frege).