It was some months ago when Scot Finnie announced Online Armor as The Best Firewall Software of 2008. Online Armor just got better! Version 3 of the Online Armor Personal Firewall has been released, providing support for 32 Bit Windows Vista.
Online Armor provides a "free for personal use" version as well as a full-feature subscription version. See the Online Armor comparison chart for the differences between the two.
The popular Vista Compatible Firewalls bookmark list has been updated to include the new release.