Asteroids and Comets
Basic information about near Earth asteroids and the hazard they pose to Earth. Asteroid origins, potentially hazardous asteroids, Earth crossing asteroids, Torino impact scale.
http://www.geocities.com/joerg52/ASTEROIDS_and_COMETS.html

NEO Information Centre
Virtual exhibition and online activities on the nature of NEOs and the hazard they pose, what efforts are being made to detect NEOs and avert collisions.
http://www.nearearthobjects.co.uk/

Earth and Asteroids
Short discussion of Yucatan and Tunguska impact events and current asteroid search programs.
http://www.3dearth.com/asteroid.htm

Earth Crossing Asteroids
Results from NASA sponsored research on the physical modeling of Earth crossing asteroids using radar and optical data. Images, animations, 3D models.
http://www.eecs.wsu.edu/~hudson/Research/Asteroids/

IAU / Near Earth Objects
Summary of research on near Earth objects, activities of the International Astronomical Union's Working Group on Near Earth Objects (WGNEO).
http://www.iau.org/IAU/FAQ/neo.html

JPL Near-Earth Object Program
NASA NEO Program Office at JPL. Overview, press releases, FAQ, 3D orbit viewer. Research information and statistics, including risk calculations for possible collisions with Earth.
http://neo.jpl.nasa.gov/

NeoDys, Near Earth Objects - Dynamic Site
Searchable database of near Earth asteroids, risk calculations for possible collisions with Earth, orbit calculation software.
http://newton.dm.unipi.it/cgi-bin/neodys/neoibo

Planetary Society's Near Earth Objects Page
NEO overview, projects, details on selected objects, space missions, news, Gene Shoemaker grant fund.
http://neo.planetary.org/

Spaceguard Central Node
newsletter.
http://spaceguard.ias.rm.cnr.it/

Tricky Science of Predicting Asteroid Collisions
Christian Science Monitor article examining asteroid collision science.
http://www.csmonitor.com/2002/0405/p03s01-stss.html

Ondrejov NEO Program
Activities at Ondrejov Observatory, Czech Republic, for photometry and astrometry of NEOs. Project news, binary near Earth asteroids, people involved, lists of light curve parameters.
http://sunkl.asu.cas.cz/~ppravec/

Arcetri Near Earth Object Precovery Program (ANEOPP)
A search for NEO images in existing photographic plate archives. Archives used, procedures, personnel involved, sample images.
http://www.arcetri.astro.it/science/aneopp/

DLR-Archenhold Near Earth Objects Precovery Survey (DANEOPS)
A project to search photographic plate archives for images of known NEOs. Procedures used, team members, images and measurements of successful precoveries.
http://earn.dlr.de/daneops/

Understanding the Distribution of Near Earth Objects.
Technical paper describing sources and orbital evolution of near Earth objects, and implications for NEO search efforts.
http://www.obs-nice.fr/morby/ESA/esa.html

Asteroid 1937 UB Hermes
, a long-lost Apollo asteroid, rediscovered in 2003, now numbered (69230) Hermes.
http://www.rzuser.uni-heidelberg.de/~s24/hermes.htm

Wikipedia: Near-Earth object
Encyclopedia article covers collision danger, spacecraft access, efforts to catalog NEOs, classifications, impact hazard scales.
http://www.wikipedia.org/wiki/Near-Earth_object

Paul Wiegert
Essays on near Earth asteroids with unusual orbits: 3753 Cruithne, 2002 AA29, hypothetical Earth trojans and quasi-satellites.
http://www.astro.queensu.ca/~wiegert/

Earth Satellites for Asteroid Hunters
Data and software useful for identifying artificial satellites which might be mistaken for unknown near-Earth asteroids.
http://home.iprimus.com.au/aberesford/neosat.html

FMO Project
A public program offered by the University of Arizona's Spacewatch Project. Volunteers review images to help find NEOs that the computers miss.
http://fmo.lpl.arizona.edu/FMO_home/index.cfm

Spaceguard Foundation e.V.
German organization promoting NEO research. News, links, organization aims, history, current activities.
http://spaceguard.dlr.de/default_eng.htm