Gnod is described as 'G.N.O.D.: Global Network Of Discovery. Let's use the latest technological advances to make us all discover more and better things. Use Gnod's AI to discover music, movies books/authors, artworks and products you like'. There are four alternatives to Gnod, not only websites but also apps for. The best alternative is TasteDive, which is free. Other great sites and apps similar to Gnod are Gnoosic (Free), Musicroamer (Free) and Music-Map (Free).
TasteDive (formerly TasteKid) is a recommendation engine for music, movies, authors and books. Just type in your favorite bands, artists, movie titles, book titles or authors, separated by commas, and TasteDive will suggest other things that you may enjoy.