Bangkok Mass Transit Authority (BMTA)
- Operates bus routes in Bangkok and neighboring provinces.
- http://www.bmta.co.th/en/index.php

2bangkok.com
- Unofficial webpages on mass transit projects in Thailand, including Bangkok's skytrain, subway, Hopewell project, and the Chiang Mai subway.
- http://www.2bangkok.com/

Thai Focus: Thailand Trains
- Timetables, sleeper information, route maps, and Thailand Railway information. Online tickets available to internet users and can be sent to any address world-wide.
- http://www.thaifocus.com/travel/train/

Bangkok Metro Company Limited.
- Responsible for operating Bangkok's subway system.
- http://www.bangkokmetro.co.th

Design Features of the Bangkok Metro
- Report on the background, design and operation of Bangkok's skytrain, with pictures and maps.
- http://www.trainweb.org/railwaytechnical/bangkok.html

Bangkok Mass Transit System (BTS)
- Operates Bangkok's skytrain - a rail based mass transit system.
- http://www.bts.co.th