This template is only for external Peirce links, not for links to sites more generally about pragmatism, or more generally about semiotics, etc. What will appear is below:

• Arisbe: The Peirce Gateway, Joseph Ransdell, ed. Over 100 online writings by Peirce as of 11/24/10, with annotations. 100s of online papers on Peirce. The peirce-l e-forum. Much else.
• Center for Applied Semiotics (CAS) (1998–2003), Donald Cunningham & Jean Umiker-Sebeok, Indiana U.
• Centro de Estudos Peirceanos (CeneP) and Centro Internacional de Estudos Peirceanos (CIEP), Lucia Santaella et al., Pontifical Catholic U. of São Paulo (PUC-SP), Brazil. In Portuguese, some English.
• Centro Studi Peirce, Carlo Sini, Rossella Fabbrichesi, et al., U. of Milan, Italy. In Italian and English. Part of Pragma.
• Charles S. Peirce Foundation. Co-sponsoring the 2014 Peirce International Centennial Congress (100th anniversary of Peirce's death).
• Charles S. Peirce Society
  —Transactions of the Charles S. Peirce Society. Quarterly journal of Peirce studies since spring 1965. Table of Contents of all issues.
• Charles S. Peirce Studies, Brian Kariger, ed.
• C. S. Peirce external links at the Mathematics Genealogy Project
• Collegium for the Advanced Study of Picture Act and Embodiment: The Peirce Archive. Humboldt U, Berlin, Germany. Cataloguing Peirce's innumerable drawings & graphic materials. More info (Prof. Aud Sissel Hoel).
• Digital Encyclopedia of Charles S. Peirce, João Queiroz (now at UFJF) & Ricardo Gudwin (at Unicamp), eds., U. of Campinas, Brazil, in English. 84 authors listed, 51 papers online & more listed, as of 1/31/09.
• Existential Graphs, Jay Zeman, ed., U. of Florida. Has 4 Peirce texts.
• Grupo de Estudios Peirceanos (GEP) / Peirce Studies Group, Jaime Nubiola, ed., U. of Navarra, Spain. Big study site, Peirce & others in Spanish & English, bibliography, more.
• Helsinki Peirce Research Center (HPRC), Ahti-Veikko Pietarinen et al., U. of Helsinki, with Commens: Virtual Centre for Peirce Studies, Mats Bergman & Sami Paavola, eds. 23 papers by 11 authors as of 11/24/10.
  —Commens Dictionary of Peirce's Terms (CDPT): Peirce's own definitions, often many per term across the decades.
• His Glassy Essence. Autobiographical Peirce. Kenneth Laine Ketner.
• Institute for Studies in Pragmaticism, Kenneth Laine Ketner, Clyde Hendrick, et al., Texas Tech U. Peirce's life and works.
• International Research Group on Abductive Inference, Uwe Wirth et al., eds., Goethe U., Frankfurt, Germany. Uses frames. Click on link at bottom of its home page for English. Moved to U. of Gießen, Germany, home page not in English but see Artikel section there.
• L'I.R.S.C.E. (1974–2003)—Institut de Recherche en Sémiotique, Communication et Éducation, Gérard Deledalle, Joëlle Réthoré, U. of Perpignan, France.
• Minute Semeiotic, Vinicius Romanini, U. of São Paulo, Brazil. English, Portuguese.
• Peirce at Signo: Theoretical Semiotics on the Web, Louis Hébert, director, supported by U. of Québec. Theory, application, exercises of Peirce's Semiotics and Esthetics. English, French.
• Peirce Edition Project (PEP), Indiana U.-Purdue U. Indianapolis (IUPUI). André De Tienne, Nathan Houser, et al. Editors of the Writings of Charles S. Peirce (W) and The Essential Peirce (EP) v. 2. Many study aids such as the Robin Catalog of Peirce's manuscripts & letters and:
  —Biographical introductions to EP 1–2 and W 1–6 & 8
  —Most of W 2 readable online.
  —PEP's branch at Université du Québec à Montréal (UQÀM). Working on W 7: Peirce's work on the Century Dictionary. Definition of the week.
• Peirce's Existential Graphs, Frithjof Dau, Germany
• Peirce's Theory of Semiosis: Toward a Logic of Mutual Affection, Joseph Esposito. Free online course.
• Pragmatism Cybrary, David Hildebrand & John Shook.
• Research Group on Semiotic Epistemology and Mathematics Education (late 1990s), Institut für Didaktik der Mathematik (Michael Hoffman, Michael Otte, Universität Bielefeld, Germany). See Peirce Project Newsletter v. 3, n. 1, p. 13.
• Semiotics according to Robert Marty, with 76 definitions of the sign by C. S. Peirce.