Nine Planets: Asteroids
Overview of current scientific knowledge of asteroids, from SEDS, the Students for Exploration and Development of Space.
http://www.seds.org/nineplanets/nineplanets/asteroids.html

Orrery: Asteroids
Basic information about asteroids, history of asteroid discovery, Bode's Law.
http://www.harmsy.freeuk.com/asteroids.html

Windows to the Universe: Asteroids
Description, data on selected asteroids, images.
http://www.windows.ucar.edu/cgi-bin/tour_def/our_solar_system/asteroids.html

Asteroid Observing Services from Lowell Observatory
Tools to help observers select targets and plan observations. Also, orbital elements, reference star catalog data and software, link to Lowell Observatory Near Earth Object Search (LONEOS).
http://asteroid.lowell.edu/

AstDys, Asteroids - Dynamic Site
Indexed, searchable database of asteroid data.
http://hamilton.dm.unipi.it/cgi-bin/astdys/astibo

Asteroid Radar Research
NASA JPL asteroid research using radar. Introduction, scientific activity, asteroid images.
http://echo.jpl.nasa.gov/

Views of the Solar System: Asteroid Introduction
Background information, details on selected asteroids, image gallery.
http://www.solarviews.com/eng/asteroid.htm

Impacts Into Asteroids
Theoretical studies of impacts of one asteroid into another, and tsunami effects of an asteroid impact on Earth.
http://www.es.ucsc.edu/~asphaug/

Minor Planet Groups and Families
Listing and description of dynamical groups and physical families of asteroids.
http://www.projectpluto.com/mp_group.htm

Exploring The Planets: Asteroids
History, location in the Solar System, near Earth asteroids, physical appearance, space missions. From the National Air and Space Museum.
http://www.nasm.edu/ceps/etp/asteroids/etpasteroids.html

UAI Minor Planets Section
Italian organization of minor planet observers. Histograms and scatter plots of asteroid orbital elements. Ephemeridies, opposition dates, conjunctions with Messier objects, shareware applications.
http://www.uai.it/sez_ast/english/

Association of Lunar and Planetary Observers: Minor Planets Section
Photometry and shape modeling program, magnitude alert project, finder charts, visual observing of minor planets.
http://www.lpl.arizona.edu/~rhill/alpo/minplan.html

Minor Planet Observer
Lightcurve collaboration, physical studies, software, Palmer Divide Observatory.
http://www.minorplanetobserver.com/

Astronomy Related Rrograms
By Jure Skvare. Downloads and web based services useful to asteroid observers. Fitsblink, asteroid server, fitsjd, fits2pg, fitsfrompg, asteroid identifier, residual calculator.
http://www-rcp.ijs.si/~jure/software/index.html

Asteroid Watch
Continuous news feed, reading list of books.
http://www.asteroidwatch.net/

Introduction to Asteroids
Covers history, asteroid composition, Earth collisions.
http://www.mira.org/fts0/planets/098/text/txt001z.htm

Asteroids
Common questions.
http://whyfiles.org/074asteroid/

Eric Weisstein's World of Astronomy: Asteroids
Dynamical groups of asteroids, mathematical formulas, the Tunguska event.
http://scienceworld.wolfram.com/astronomy/topics/Asteroids.html

News on Hilda Asteroids
A review of current knowledge of this dynamical group. Overview, low eccentricity Hildas, the Schubart family, numbered Hildas of the Palomar-Leiden survey.
http://www.rzuser.uni-heidelberg.de/~s24/hilda.htm

Wikipedia: Asteroid
Encyclopedia article covers history, groups of asteroids, spectral types. Tables of largest and notable asteroids.
http://www.wikipedia.org/wiki/Asteroid

Asteroids with Canadian Connections
A list of asteroids whose names are known to have a Canadian connection, usually because they are named after a Canadian.
http://www.rasc.ca/faq/asteroids/home.htm

Asteroids and Remote Planets Section
Section of the British Astronomical Association. Asteroid finder charts, articles on observing techniques.
http://yan.open.ac.uk/~ajh47/arps.htm

Small World Atlas 2000
Cartography of irregularly shaped asteroids and satellites. Maps, images, related papers.
http://www.ssc.uwo.ca/geography/spacemap/

Asteroid Models
Research in determining asteroid shapes through photometric data and multiple data sources. Reference documents, introduction, links.
http://www.astro.helsinki.fi/~kaselain/asteroids.html

Asteroids
From the Uppsala Planetary System Group. Overview, research projects, discoveries.
http://www.astro.uu.se/planet/asteroid

Asteroids
Link collection organized as a study guide.
http://aurora.phys.utk.edu/~daunt/study_guides/Asteroids.html

Dan Durda's Research Interests
Airborne observations, Vulcanoids, various asteroid collision effects.
http://www.boulder.swri.edu/~durda/research.html

Small Main-Belt Asteroid Spectroscopic Survey II
Data sets and references to scientific literature describing results.
http://smass.mit.edu/

Asteroid Articles
Archive of articles posted at the Planetary Science Research Discoveries site at the University of Hawaii.
http://www.psrd.hawaii.edu/Archive/Archive-Asteroids.html

Bill Bottke's Asteroid Research
Collisions, tidal disruption, dynamics, planetary impacts, crater chains and doublet craters.
http://www.boulder.swri.edu/~bottke/

List of Double Minor Planets
Known or suspected asteroids with satellites.
http://hea.iki.rssi.ru/~denis/doublemp.html

Asteroids with Satellites
Lists of known or suspected asteroids with satellites. Also history, graphs, links.
http://www.johnstonsarchive.net/astro/asteroidmoons.html

The Asteroid World
Categorization of asteroids by their orbits and physical properties.
http://www.astrosurf.com/aude-old/map_files/ASTFAMILIES%2002-04-28.HTM

Solar System Exploration: Asteroids
Basic description, overview of asteroid science.
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Asteroids

Asteroid Groups
Graphs and animations showing major asteroid groups and families.
http://sajri.astronomy.cz/asteroidgroups/groups.htm

Asteroids
Chart showing relative sizes, distance from the sun, inclination/eccentricity, shape, and color. Other charts showing position in the solar system. Summary data.
http://www.alumni.caltech.edu/~marcsulf/asteroid/asteroid.html

Serra Designs - Asteroid Model Series
Scientifically accurate scale models of asteroids.
http://www.serradesignsinc.com/ast_models.htm

Suspected and known binary asteroids
List of suspected binary asteroids with bibliographic references.
http://www.imcce.fr/observateur/binast/binary_ast.php

Physical studies of asteroids at Poznan Observatory
Light curves, database of asteroid spin vectors.
http://www.astro.amu.edu.pl/Science/Asteroids/

European Asteroid Research Node
Association of European research groups active in asteroid research. Links to member sites and resources useful for asteroid research.
http://earn.dlr.de/