Battlestar Galactica: The Official Magazine
From Battlestar Wiki, the free, open content Battlestar Galactica encyclopedia and episode guide
The Official Battlestar Galactica Magazine from Titan Magazines featured news direct from the production offices, interviews with the cast and crew, and on-set reports that take the reader behind-the-scenes. The Official Battlestar Galactica Magazine was promoted as "the first and last word for all Battlestar fans."
Note
This magazine has been cancelled as of issue 7, but back issues are available from its online store.