Important Links

Organizations:
FEZANA (Federation of Zoroastrian Associations of North America)
WZO (World Zoroastrian Organization)

Research:
Encyclopaedia Iranica (Best academic resource for anything Mazdayasni or Iranic [trust this over Wikipedia!])
Avesta – Zoroastrian Archives (A trove of public domain works relating to Mazdayasna)

Video Lectures by Pablo:
“The Gathas, Zoroastrianism, and the Ancient World”
“The Wisdom of Mazdayasna”