Space
Orbits of planets in binary star systems. Java orbit animations and diagrams of stable retrograde planetary orbits not documented anywhere else.
www32.brinkster.com Details

Terrestrial Planet Finder
Explains NASA's plan to use sensitive telescopes to find planets outside of the solar-system. Includes charts and drawings.
www.terrestrial-planet-finder.com Details

The Big Occulting Steerable Satellite (project)
Mission designed to provide improved resolution of closely spaced objects with comparable brightnesses (binary stars, microlensing events) and to facilitate separation of dim objects from nearby bright objects (such as planets around stars).
boss.phys.cwru.edu Details

The Extrasolar Planets Encyclopedia
The reference site for astronomer involved in the search for extrasolar planets.
www.obspm.fr Details

The Optical Gravitational Lensing Experiment (OGLE)
A long term project with the main goal of searching for the dark matter with microlensing phenomena.
sirius.astrouw.edu.pl Details

The VLT UV-Visual Echelle Spectrograph
The VLT UV-Visual Echelle Spectrograph
www.eso.org Details

Transit search
The purpose of transitsearch.org is to coordinate and direct a cooperative observational effort which will allow experienced amateur astronomers and small college observatories to discover transiting extrasolar planets.
www.transitsearch.org Details

Transits of Extrasolar Planets
The TEP network is a group of collaborators searching for Transits of Extrasolar Planets.
www.iac.es Details

Umbral Missions Blocking Radiating Astronomical Sources (project)
The UMBRAS goal is direct observation of planets around other stars.
www-int.stsci.edu Details