Spasmo - Umberto Lenzi - 1974
The soundtrack of L'uomo senza memoria (Man without a memory AKA Puzzle) - Duccio Tessari - 1974
Beatrice Cenci - Lucio Fulci - 1969
About Gothic Giallo: Margheriti's "Seven deaths in the cat's eye", Miraglia's "The night Evelyn came out of the grave" and "The Red Queen kills seven times"
A few interesting articles about Fulci
"La Dolce Morte, Vernacular Cinema and the Italian Giallo film", by Mikel J. Koven
The best gialli on rankopedia