The Vista Security Features bookmark page has been updated to include a new tutorial by Vista4Beginners how to use the built in firewall in Windows Vista. Unlike the firewall introduced with Windows XP SP2, the Windows Vista firewall provides both inbound and outbound protection.
A nice benefit of the Windows Vista firewall is that it is pre-installed as part of the operating system, there are not extra costs involved and, even better, no concerns about add-on toolbars.
Learn how to use the firewall at Vista4Beginners in Windows Firewall. Don't worry if you lose track of the link, it can always be found in Windows Vista Bookmarks.