While I prefer Study Blue, as it allows one to add pictures and audio, it does not allow one to search and use other people's flash cards unless you have an account. For schools that adhere to FERPA and COPPA closely this is not possible. So for that reason studying using Quizlet is a way around. I usually give my kids the choice of doing the study guide or creating a Study Blue or Quizlet set of cards. Above is one for Greece.