2006 Large Japanese August - December (4503668-JA) : Catalog c06ja2 | BrickLink
2006 Main Lego Catalogue | Printed Lego Catalogues
2006 LEGO Catalog 09 DE - LEGO instructions and catalogs library
Minifigures Diorama - Promotional Set (Toy Fair 2006) : Set tf06-1 | BrickLink
LEGO Shop at Home | Catalog Summer 2006 | featuring the UCS Death Star II and AT-ST : r/legostarwars
Jeff & Jeff's Pandemonium: Secret Lego sets for 2006
Fun fact: In the Lego catalog from 2006, the figures of the sail barge are still yellow, even though the actual figures were light nougat : r/legostarwars