RUMBA: Tube Underground Magnetic Levitation Railway
- A proposal for a passenger magnetic levitation based railway. Includes analysis of design requirements, network components, and implementation.
- http://www.cbruch.homepage.t-online.de/Rumba_e.html

TubeWay
- Describes suspended passenger pneumatic capsule pipeline proposal, with diagrams.
- http://tubeway.de/

ISUFT 2005 - 4th International Symposium on Underground Freight Transport
- Contains call for papers and background.
- http://www.csueus.com/isuft2005/

Magtube
- Describes system using magnetically levitated freight capsules which operate in underground tunnels, with company information.
- http://www.magtube.com/

International Symposium on Underground Freight Transportation by Capsule Pipelines and Other Tube/Tunnel Systems
- Contains news, history, conferences, and research groups.
- http://www.isuft.org/

Pipenet
- Describes synchronous linear motor based system for moving lightweight freight, with movie of prototype in operation.
- http://www.pipenet.it/

Computerworld: Shipping Goes Down the Tubes
- An introduction to many of the large diameter schemes under development.
- http://www.computerworld.com/softwaretopics/software/appdev/story/0,10801,58976,00.html

New Scientist: Pipe Dream
- Attempts to answer the question, what became of a 1960s scheme to transport solid goods by pipeline, and why?
- http://www.newscientist.com/lastword/article.jsp?id=lw670

Public Roads: Tube Freight Transportation
- A review of the subject by Lawrence Vance and Milton K. Mills, United States Federal Highway Administration.
- http://www.tfhrc.gov/pubrds/fall94/p94au21.htm

Freight Pipeline Company
- A company seeking to commercialize Coal Log Pipeline technology. Contains a business plan and history, and technical background to capsule pipelines, including those for biomass and mine waste.
- http://www.freightpipelinecompany.com/

3rd International Symposium on Underground Freight Transportation by Capsule Pipelines and other Tube/Tunnel Systems
- ISUFT2002, a conference hosted by Ruhr-Universität Bochum. Contains an introduction, and conference and exhibition details.
- http://www.ruhr-uni-bochum.de/isuft2002/

Magplane Technology, Inc.
- Includes a description and technical papers covering a linear synchronous motor based capsule pipeline.
- http://www.magplane.com/

Capsule Pipelines
- Contains a definition, history, views, and sources. Covers aspects of tube transportation, pneumatic tube systems, telegram conveying, and pneumatic despatch.
- http://www.capsu.org/

Evacuated Tube Transport Technologies
- Describes ET3, a project developing an evacuated tube system. Includes a summary of the technology and application, list of benefits, FAQ, and patent and licensing information.
- http://www.et3.com/

CargoCap
- Describes a system for conveyance of goods through pipelines in Bochum, Germany. Includes an introduction, background, and news.
- http://www.cargocap.com/

Characteristics of a Freight Pipeline Transportation System
- A scoping paper by Department of Aerospace Engineering and Mechanics, University of Minnesota, Minneapolis. Covers linear electric propulsion, drag and stability.
- http://faculty.washington.edu/~jbs/itrans/zhao.htm

Flexitaxi
- Describes a Russian proposal for a tube transit system.
- http://faculty.washington.edu/~jbs/itrans/flextaxi.htm

International Freight Pipeline Society
- Society for those interested in capsule, pneumatic, and slurry pipelines. Contains a member directory, publications, and news.
- http://www.freightpipeline.org/

Tubexpress
- A proposal for a system to move pallet-load general freight at high speed between cities. Includes a summary, history, outline design, and consideration of economics, energy, safety, and maintenance.
- http://www.tubexpress.com/

Inteli-Tube Pneumatic Transportation System
- Contains an idea for a pneumatic tube based personal transport system.
- http://zapatopi.net/pneumatic.html