GameSpot: Review, news, cheat codes, and screen shots.
IGN: Developer Journal: Allegiance: By Joel "Solap" Dehlin. Contains comments on development process, concept, and team background.
PlanetAllegiance: Strategy guides, resources, features, files, and forums.
The Allegiance Gateway: Contains Allegiance Authentication System, auto-update troubleshooting guide, and tool downloads.
Vault Network Boards: Still active message board for the Allegiance Community.