You can look for other Histology resources on the Histology World website.
Although I obviously disagree with Dr. FitzGerald on the purpose and utility of this website in training histology students, especially medical students, I still believe that he's a fair, reasonable, and education-minded person. He might, for example, listen to polite, articulate emails from histology students around the world expressing how useful the Histology quiz has been to them in studying the subject.