The Rise and Fall of Alexander Hamilton by Ian Finseth. An excellent biography of about 6,500 words (20 pages), to which is appended a slightly shorter essay on his "image through time" (also excellent). Contains a few hyperlinked documents.
Wikipedia: Excellent short biography. Wikipedia is an "open source" encyclopedia. Anyone can edit it, anytime. Surprisingly, it works. The real strength here is the hyperlinking.
New York Founding Fathers with a long bio on Hamilton. Also includes John Lansing and Robert Yates.
"Historic Valley Forge: Who Served Here?" brief biography of Hamilton.
Web Archive: Outline biography of Burr from Steven Schoenherr's American Civilization class at the University of San Diego. Includes high-resolution Burr painting.
Biography from "Left-Justified" (who have an edition of the Federalist Papers). To call Hamilton the most ardent "nationalist" of his day is a little off--anyway it needs explanation. Somebody might think he was an American Firster.
1856 Pocket biography from James V. Marshall's The United States Manual of Biography and History
Web Archive: New York Delegates to the Constitutional Convention. Pocket biographies of Hamilton, John Lansing, Jr. and Robert Yates from the National Archives and Records Administration. A complete list of the participants is also available.
The World Turned Upside Down (Revolution Book and Page) pocket bio.