As mentioned after last RPG session, here is
Traveller Map, a website containing every mapped sector from Traveller products. If you don't have your Traveller book to hand, it even has
a key to the Traveller planet profile system. You can scroll in and out, search for specific sectors or planets and change what is and isn't shown. It can even spit out good output for printing: You can request
an A1 poster of a sector or
an A4 booklet of the sector, split into smaller subsector maps. You can even convert your own generated sectors to display in the same format if desired.
This is a really cool toy and one which just makes me want to play Traveller more. :-)