Dungeons And Dragons Online: WotC News: Deities and Demigods and Complete Warrior Available Ebooks

Wizards says it best:

Deities and Demigos and Complete Warrior have been released as ebooks -- a secure form of PDF. They are currently available for sale through DriveThruRPG.

These require payment, and a DRM-enabled copy of Adobe Acrobat. More info available here.