- Ancient Greece - Presents articles about Greek history and culture alongside maps and pictures of art, archaeological sites, and museums.
- Geological Society of Greece - To promote and advance the knowledge of all topics of geology.
- Greek City States - History of Greece since the dark ages with maps.
- Greek House - The main reason for the creation of the Greek House is the promotion of Greek culture and language for non-Greeks. Mind you, the faculty members of the Greek House have years of teaching experience.
- Hellenic American Union - Providing innovative cultural events, conferences, testing services, and educational programs in English and Greek.
- Hellenic Culture - Welcome to ODYSSEUS, the WWW server of the Hellenic Ministry of Culture.
- Hellenic Electronic Center - A non-profit NGO organization that promotes Hellenic History and Culture, through electronic communications networks.
- Hellenic Ornithological Society - Discovers the birds of Greece, offers a large collection of articles and on-line books and other services.
- Hellenic University Club of Southern California - A non-profit cultural organization in California dedicated to promoting the study & understanding of the Hellenic Culture.
- Hellenism.net - A complete guide to Greece and the Greek culture. Find out about the country, the Greek culture, and the people.
- History of Greece - From pre-historic to the present time, including politics, war, culture, art, film, photographs and music.
- Nissakia Wave Society - Provides services such as lessons, equipment rental opportunities and storage facilities.
- The Greek House - A Greek cultural center providing the community with a wide range of Greek related courses, seminars, lectures and art exhibition.
- Yvelia - The meeting place for Greek and Jewish cultures, ecology, and architecture, history and heritage and more.