horacio.com
horacio.com used to host a popular discussion board and the best collection of Treasure Quest links. Some of it is still there, but most has been archived. [Requires frames.]

Alt+Q - All of Treasure Quest on one page
Extensive list of hot spots, audio clues, words, &c. for each screen in the game

newStandard: Quest mystery promises treasure to first solver
by Lonnie Brown

The Ledger: Database: Try finding the winner
by Lonnie Brown - "You think finding the correct answer hidden in Treasure Quest that would win $1 million was difficult? You should try finding the winner."