Around San Andreas you'll find several ads and signs with web adresses, fax and phone numbers - here are some of them:
GTA San Andreas websites
• The Epsilon Program website
• Darius Fontaines website
• O. G. Loc's website
• Maccer website
• The Cluckin' Bell website
Around San Andreas you can hear people speak of the Epsilon cult.
Especially the backpackers, they seem to be members of the cult, and speaks only of this. Also some of the barbers seems to be members, while other characters don't seem very positive about the cult. You often have to bump into the backpackers...