Here are some links to some very meaningful web sites!
(This page under reconstruction, but links work!)

The American Humanist Association
S. M. A .R. T Recovery
Harvard Humanist Chaplaincy
Ethical Society of Boston
The Skeptics Society
MIT's Humanists, etc.
Unitarian Universalist Association
Boston Hemlock Society
Harvard Secular Society
Naturalism.Org
The American Atheists
CSICOP
The ACLU
Ontario Consultants on Religious Tolerance
Harvard Secular Society
New England Skeptical Society
The International Humanist and Ethical Union
Creationism Experts
Society for Humanistic Judaism
Secular Student Alliance
Campus Free-Thought Alliance
Council for Secular Humanism
The Secular Web (Internet Infidels)
Americans United for the Separation of Church and State
Freedom From Religion Foundation