Links to other Spirit sites.

The New York Times has a good article about the business model of Spirit Airlines.

Spirit Mars Rover

Information about the spirit.com domain.

Seven years of Network Defense security columns, written by Rik Farrow for Network Magazine.

Security is Broken presentation and references.

Links to computer and network security resources.

List of ports and services, along with descriptions and suggestions about their safety if permitted through a firewall.

Compare and view information about Firewall Products, along with papers and information useful in selecting firewalls.

Privacy policy.