1st Astrodienst: This general-purpose website allows you to create real-time astrological charts in Portuguese. https://www.astro.com

2nd Hellenistic Astrology: A specialized website for those who want to delve deeper into the Hellenistic roots of astrology. https://www.hellenisticastrology.com

3rd Dane Rudhyar: Page dedicated to the work of Dane Rudhyar, a pioneer of Humanistic and Transpersonal Astrology.
https://www.khaldea.com/rudhyar

4th Astrological Space: Website to explore aspects of the History of Astrology in Portugal and Europe. https://www.astro.com/astro-databank/Main_Page

5th Astrodatabank: Huge database of people and events compiled by Lois Rodden and regularly updated by Astrodienst.

6th Janus Program: Professional international astrology program for calculating and interpreting natal charts.