| How to Make Our Ideas Clear: 1878 article Charles Pierce. |
| Russell on Vagueness: Online text of Russell's 1923 article. |
| Vague Concepts and Sorites Paradoxes: Article by Vlad Vieru. |
| Vagueness: Article in the Stanford Encyclopaedia of Philosophy, by Roy Sorensen. |
| Vagueness and Ambiguity: A little test to help distinguish vagueness from ambiguity (from San Jose University's critical thinking pages). |
| Vagueness and Identity: Article by Loretta Torrago presented at the 20th World Congress of Philosophy. Makes the surprising argument that vagueness in identity statements is incompatible with vagueness of constitution. |
| Vagueness and the Sorites Paradox: Site maintained by Justin Needle. Extensive links, and excerpts from his PhD thesis `Ruling Out the Sorites: Vagueness, Rules, Wittgenstein'. |
| Vagueness and the Sorites Paradox: A resource for philosophers and other researchers, including a bibliography on vagueness, plus lists of online articles, homepages of people working in the area and related external resources. |
| Vagueness, Semantics, and the Language of Thought: Article by Richard DeWitt. |
| Where Demonstratives Meet Vagueness: Possible Languages: Article by Adam Morton, which appeared in Proc. Aristotelian Society. Argues that vagueness and demonstratives are connected, by means of constructing artificial languages in which the relationships are manufactured. |
Classical
