From NASA's 'Astronomy Picture of the Day' archive, the three most educational images (editor's choice) related to black holes.

News item by Peter Weiss, Science News Online, about upcoming laboratory experiments on artificially created, non-gravitational analogues of black holes. (February 5, 2002)

Pages by the relativity group at Cambridge University, aimed at a general audience. They include a brief introduction to black holes, information about observational evidence, and a section on black holes and critical phenomena.

A one-hour lecture given by David M. Harrison (University of Toronto) to senior liberal arts students on the basic properties of black holes. (June 2, 2002)

Review article by Piotr Chrusciel (Université de Tours), covering the evidence for the existence of black holes, their mathematical definition, global aspects, and the most important black hole theorems. Special care is taken in exploring aspects relating to numerical simulations of black hole systems. (January 16, 2002)

Review article by Gary T. Horowitz (UCSB) and Saul A. Teukolsky (Cornell); includes information on the observational evidence for black holes, some developments involving cosmic censorship, and the statistical origin of black hole entropy. (August 12, 1998)

Lecture notes for Paul K. Townsend's course on Black holes at Cambridge University. Covers the basics of black hole physics, the mechanics of black holes, and related geometrical concepts at a level suitable for advanced physics students. (July 4, 1997)

Collection of articles about various aspects of black hole physics, from astronomical observations to the question of why black holes have no hair. Part of the 'Spotlights on Relativity' series on Einstein Online; written for a general audience.

Part of the 'Spacetime Wrinkles' exhibit published by the National Center for Supercomputing Applications: descriptions of what black holes are, how they might be detected, and what kinds of gravitational waves they should produce. Aimed at a general audience.

Review article by T. P. Singh (Tata Institute) about gravitational collapse and the cosmic censorship hypothesis; includes a summary description of known models of collapse resulting in the formation of black holes and naked singularities. (May 18, 1998)

Review by Rob Myers (Perimeter Institute); includes information about calculations of the black hole entropy using branes. Based on lectures given at the 4th Mexican School on Gravitation and Mathematical Physics. (July 10, 2001)

Review article by Jean-Pierre Luminet (Observatoire Paris-Meudon), which presents in a pictorial way the basic concepts of black hole physics; includes information about astronomical objects that are black hole candidates. (January 26, 1998)

Article by Igor D. Novikov (University of Copenhagen) on current theories about the inside of black holes, addressing questions such as 'Can we see inside a black hole?' and 'Can a falling observer cross the singularity without being crushed?' (April 14, 2003)

Presentation about stellar black holes, suitable for undergraduate students. Created by Eduard Westra for a second-year astronomy course he was taking at the Australian National University.

FAQ for the usenet newsgroup sci.physics; compiled by Matt McIrvin; last change 1995. Suitable for a general audience; addresses a number of fundamental questions such as 'How does gravity get out of a black hole' or 'What happens if you fall in'.

Information about black holes for a general audience, including virtual journeys and simulations, from the Space Telescope Science Institute (the people in charge of the Hubble Space Telescope).

Information about the astrophysics of black holes on the website of NASA's High-Energy Astrophysics Learning Center. Suitable for ages 14 and up.

An informal introduction to the different types of black holes, to what happens outside and inside such objects, and to how they can be detected; suitable for a general audience. Created by Jillian Bornak as the final project for a beginners' course on general relativity at Syracuse University in 2003.

List of articles, websites, and images on About.com, compiled by Nick Greene.

Part of Rob Salgado's website 'The light cone - an illuminating introduction to relativity' at Syracuse University, which explores relativity using simple spacetime diagrams. These particular pages explore the simplest black hole solution.

List of news articles and press releases related to all aspects of black hole physics, from theory to astronomical observations; updated frequently.

Text by Jim Haldenwang describing the foundations of general relativity and some basic properties of black holes. Presupposes knowledge of calculus and basic concepts of special relativity.

A set of links to numerous black holes resources on the Web, this site is a useful starting point for finding technical articles on the topic.