From the masthead in issues 12-16:
The Quadrant One Newsletter. Part of the History of the Imperium Working Group family of documents, fanzines, and newsletters.
From the masthead in issues 17-19:
Argushiigi Admegulasha Bilanidin: The "Vilani Repository of All Knowledge." A combined university, museum, and research center on Vland/Vland in the restored Vilani Empire. The oldest such institution in charted space, the 11,000-year-old institute has an Imperium-wide reputation as a clearinghouse for patents and technology.
From the masthead in issues 20-33:
The newsletter of the History of the Imperium Working Group (HIWG), a Traveller club using the official Traveller universe. Produced and distributed by Clayton R. Bush.
From the masthead in issues 34-42:
The newsletter of the History of the Imperium Working Group (HIWG). Produced and distributed by Clayton R. Bush.