Links by Spencer:

The Principles of Sociology

First Principles

The Man versus the State

The Proper Sphere of Government (1848)

Links about Spencer:

Too Awful to Read? Susan Jacoby on Herbert Spencer by Roderick T. Long

Herbert Spencer as an Anthropologist by Robert Carneiro

The Origin and Context of Spencer's Thought

The Internet Encyclopedia of Philosophy

The History of Economic Thought

Article by David Weinstein

Personal Reminiscences of Herbert Spencer by Grant Allen, 1894

A Short Biography

Bibliography

The Victorian Web