Good sites for internet/computer security

[palotin]

I'm trying to find sites related to internet and computer security. First off I'm interested in sites that provide a general introduction to the issues involved and a practical guide to getting started. Then I'd like to know about any forums that have pretty active discussion of the issue. Thanks.

[Q]

Why Linux is better (http://www.whylinuxisbetter.net/).

[The Idler]

Encrypt your hard disk in case the Feds take it.
To surf anonymously use Tor.
To publish anonymously use Freenet.
The theory of anonymity is called crypto-anarchism.
Anything else?