University of Wisconsin
The Why Files: The Known Universe Requires Black Holes!
Models of star formation don't match the true star number. Now see how the black hole restrains news stars so everything adds up.
Other
Space Science Institute: Alien Earths: Star and Planet Formation
Learn about the lives of stars, and how stars and planets form. The Interactive activity, 'Planet Families' requires Adobe Flash and cannot be launched.
Kidport
Kidport: Space Science
This complete resource will help students to improve their understand of space exploration. Includes images of the universe, galaxies, stars and planets.
CK-12 Foundation
Ck 12: Earth Science: Star Formation
[Free Registration/Login may be required to access all resource tools.] Examines the formation of a star.
CK-12 Foundation
Ck 12: Earth Science: Main Sequence Star Lives
[Free Registration/Login may be required to access all resource tools.] Examines the main sequence of the star's life cycle.
Khan Academy
Khan Academy: Quiz: How Were Stars Formed?
Take a five question quiz on how stars were formed.
California Institute of Technology
Spitzer Science Center: Black Widow Nebula
Under the heading, "Black Widow Nebula Hiding in the Dust" this site examines specific details of an image displaying the Black Widow nebula, which contains clusters of star formation.
Other
Planetary Science Institute: Building Planets at Psi
An article about the Planetary Science Institutes's advanced computer software, which it uses to model the way the solar system may have formed. Includes some insights into the results already obtained.