Atlasgeo: Croatia: Animated GIF image.
Flags of the World: Croatia: National, historical, presidential, political, military, county, municipality, and house flags.
Law on the Coat-of-Arms, the Flag, and the National Anthem: Includes description of the flag and design of the coat of arms from the official government web site.
Theodora.com: Croatia Flags: Images in several sizes.
World Flag Database: Croatia: National and military flags and ensigns.