Underground

• Games: Video Games: Console Platforms: Microsoft: Xbox  (102)
• Games: Video Games: Console Platforms: Nintendo: Game Boy Advance  (26)
• Games: Video Games: Console Platforms: Nintendo: GameCube  (72)
• Games: Video Games: Console Platforms: Sony: PlayStation 2  (78)
• Games: Video Games: Developers and Publishers: A: Activision  (2)
• Kids and Teens: Games: Computer and Video: Tony Hawk Games: Underground  (16)

Alias Clan :

- Creates and trades parks. Information on how to join, roster, and news.
GameFAQs :

- Provides information, FAQs, guides, cheats, reviews, and a message board. (PlayStation 2)
IGN :

- Offers cheats, FAQs, walkthroughs, review, previews, features, movies, screen shots, and forum.
Open Site :

- Includes information and review summaries.