Conceptual Role Semantics
Entry by Ned Block in the Routledge Encyclopaedia of Philosophy.
The Meanings of Logical Constants
Essay by Gilbert Harman, arguing for Prawitz's approach to the semantics of logic based upon an inferential role semantics.
What is (Nonsolipsistic) Conceptual Role Semantics
Article by Gilbert Harman defending a variety of inferential role semantics in which the primary use of concepts lies in their use in `calculation'.