Cheats Codes Guides: Provides a list of cheat codes.
DRUMMAD: Offers hidden package maps, hints, and cheats. [Requires free membership]
FilePlanet: Offers trailers and videos.
GameSpot: [7.1/10] Reviewed by: Jeff Gerstmann. "...problems are amplified by the transition from the PSP to PS2, but the budget price makes this run-of-the-mill Mafioso tale much easier to swallow." Includes screenshots, videos, hints, and cheats.
GameSpy: Includes news, release data, and box art.
GamingMoz: Release data, box art, and a message board.
GTA Liberty City Stories: Contains news, information, previews, and screenshots.
GTAPSP.com: News, overview, characters, missions, and FAQs.
IGN: News, release data, and a message board.
TotalVideoGames.com: Game information, previews, and screenshots.