The enemy of liberty is collectivism;
and its likewise shady cousins, socialism,communism and communitarianism.
As a hardcore individualist libertarian i would happily endorse the following site and book, as to a large degree they represent well my political philosophical views.
About Cato
Realizing Freedom: Libertarian Theory, History, and Practice
Are you more a libertarian or a collectivist ?
I am aware of an arch collectivist who is a member of this forum