Evolution and Philosophy: Social Darwinism: Evolution does not have moral consequences, and does not make cosmic purpose impossible.
History Today: Social Darwinism Revisited: A short article by Leslie Jones, reviewing the history of eugenics with respect to social darwinism.
Social Darwinism: A critical look at the theory.
Social Darwinism: Reason or Rationalization: Student essay-writing activity considering Social Darwinism in terms of its historical context and use. Includes responses written by students.
Victorian Web: Social Darwinism: Basic introduction to the theory.
Wikipedia: Social Darwinism: Article from this openly-edited reference work.