Brompton - Official website
All technical information and plenty of photos.

Brompton - Brochures (Russian, English etc.)

Examples of the various folding bike tests from Google results: "folding bike test".
1: Folding Bike Buyer's Guide UK.
2: Folding bicycle test | Auto Express.

Brompton - Video guides
Basic information about adjusments and maintenance.

NYCeWheels - Brompton videos
Instructional videos from an american bike shop.

"Commuting Cyclist"-blog: "How I Came to Choose the Brompton M3L"
Living with a Brompton, for example: Brompton in an airplane.

Brompton - Factory in London
Presentation of the factory.

Brompton - How it's made
Manufacturing starting with the bending and brazing of the frame.

Brompton - Factory visit
American enthusiasts get a chance to take take an exclusive factory tour.

Schwalbe Marathon Plus mounting video
Some of our customers have had problems mounting Marathon Plus tires on the rims. This is caused by the stiff structure of the tire. The video gives a couple of quick tips to save you time and trouble.