Liquid-bulk tanker work for owner-operators is certainly one of those freight niches where there are many niches within the niche, if you will, as Overdrive's Partners in Business guide makes clear.

Thousands of gallons of liquid moving at highway speeds behind the headache rack can put the fear of God in a driver, says Dennis Holliday. “A lot of guys get scared” thinking about it, Holliday says.

If your fleet operates dry bulk or tanker trailers, there’s a good chance that you might be using some innovative technology and options that Kyle Neumann worked on developing. As vice president of ...