Everyday it seems someone is asking for links to bags to fit their new 12/15/17 Powerbook. I thought it would be a good idea to dedicate a thread to listing all links/comments/reviews of bags and such right here. I've semi-compiled a list based on the first search page I did on this forum for *bag*. Everyone chime in with your additions! Here we go:

Waterfield Designs - cases/sleeves
Booq - cases/sleeves
Tom Bihn - everything
Kensington - everything
Brenthaven - cases
Marware - cases/sleeves
Incase - everything
ACME MADE - cases/sleeves
MacCase - everything
Dr. Bott - everything
Crumpler Bags - messenger bags
Timbuk2 - messenger bags
Chrome Bags - messenger bags
Shinza - cases/sleeves
Kata - everything
Spire USA - backpacks/sleeves
Boblbee - backpacks
Tumi - everything
R&R Cases - hard cases
ZERO HALLIBURTON - hard cases

Lots o' bags:

eBags
BagsForMe
Bagreview
Macro Luggage

Update #1:

Bailey Works - messenger bags
Ortlieb USA - everything
RadTech - sleeves/accessories
Shaun Jackson Design - bags/sleeves
Targus - everything
Willow Design - everything

Update #2:

Pelican Case - hard cases
Tenba - cases/bags
Victorinox by Swiss Army - everything