Boiler Room Steam Forum
Bulletin board for discussion regarding the use of boilers. This forum is potentially a good resource for trenchless pipeliner contractors who rely upon boiler trucks.
Drilshop Bulletin Board (USA)
The purpose of this bulletin board is for the posting of, exchange of information, news, wanted equipment, and any other points of interest for the drilling industry.
Sewer-List
An Internet mailing list for persons employed in the wastewater-treatment business. (Trenchless rehabilitation is frequently discussed.)
Steam-List
Information about a mailing list for people who work with steam. (This list is not used for discussions of railroads.)This list makes a useful resource for contractors in the pipe …
Trenchless Information Center Directional Drilling Posting Board
Active bulletin board focused upon directional drilling.
Trenchless Technology Email Forum
A non-commercial, non-profit, free, and unmoderated list for the interactive discussion of all areas related to trenchless technology.