A Great Man in a Grim Time: A tribute to the philosopher by Arthur Schlesinger includes a biography, reproduction of Berlin's obituary in the New York Times, and texts of many of his works.
Author's Calendar: Isaiah Berlin: Biography and bibliography.
Chief Rabbi: Sir Isaiah Berlin: Concise eulogy delivered at the Jewish thinker's funeral.
Isaiah Berlin and the History of Ideas: A biographical essay.
Isaiah Berlin Virtual Library.: Provides basic biographical outline and information on the Isaiah Berlin Papers, in addition to essays, links, pictures and bibliographies. Hosted by Wolfson College, Oxford.
Philosopher and Political Thinker Sir Isaiah Berlin Dies: BBC obituary from 1997. Includes an audio clip of the philosopher's definition of "liberal."
Sir Isaiah Berlin: A Tribute from Wolfson College, Oxford. Includes obituary, bibliography and essays on the philosopher and his works.
Sir Isaiah Berlin Papers: Information on this archive housed at the Bodleian Library, including selected image files and a profile of the thinker.
Stanford Encyclopedia of Philosophy: Isaiah Berlin: Life, thoughts and bibliography.
Wikipedia: Isaiah Berlin: Entry from this openly-edited encyclopedia.