First up, a big thank you to everyone who has sent me material so far, one subsector (Utge) has been submitted to the Traveller Map and with luck should be available for viewing soon. What follows is a list of magazines for which I have little or no information on the contents, including whether or not the authors tried their hands at subsector creation, if anyone has copies of these (A real long shot...) and can provide this information (Which will also be added to the TravellerWiki) I will be eternally grateful.
The magazines are
Dark Star (5 Issues - July(?) to October 1981)
Working Passage (12 Issues (0-11) November '84 to December '85)
Between Worlds (? Issues, first issue came out in 1985)
The Travellers Aide (? Issues, first came out in 1985, linked to a PBM game.)
Morgonstjärnen (Swedish Fanzine, 5 issues (1-5/6(Double issue), early 1980s), this last one is known to have published at least two subsectors (Hrigli & Utge).