Massachusetts Institute of Technology
Mit: Open Course Ware: Introduction to Philosophy of Language
A complete, undergraduate level online class on the philosophy of language available from MIT. The course description states, "this course explores the nature of meaning and truth, and their bearing on the use of language in communication."
Stanford University
Stanford Encyclopedia of Philosophy: Gottlob Frege
Good summary of Frege's thought. Some sections are more technical, but the explanation of his philosophy of language and other sections are more readable.
Stanford University
Informal Logic/stanford Encyclopedia of Philosophy
Describes the recent movement known as "informal logic." Summarizes its brief history, provides several detailed examples, and explains its relationship to philosophy. Bibliography included.
Science Struck
Science Struck: Branches of Philosophy, Role in Contemporary Affairs
Describes the different branches of Philosophy and what their relevance is to today's world.
University of St. Andrews (UK)
University of St. Andrews: Willard Van Orman Quine
Great biography of Quine. Summarizes his works in the context of his life, with numerous quotes from Quine himself.