Traveller 3rd party content

So I have noticed a near total lack of 3rd party adventures/supplements for the Traveller system on the Roll20 platform, despite there being a huge quantity of TAS (Travellers Aid Society) material available on Drivethru RPG, and am wondering if there is a particular reason for this. I'm interested in developing several modules for Traveller on Roll20 as there seems to be a niche here, but dont want to bother if it turns out there is some kind of fine print preventing that kind of content. In all other regards, Mongoose Publishing seems to be very supportive of 3rd party creators... Any thoughts on this? Aaron -  Scarab House Games 

Hi Aaron F.,  The answer is probably that the publisher is not paid anyone to convert it to Roll20. Most content on Roll20 is converted by the publisher or their representatives. (Obvious exceptions are D&D 5e and Pathfinder which contracts directly with Roll20 to do the conversion.) You should contact the publisher and ask them to provide the content on Roll20.

I'm actually thinking of creating some myself (right now I sell mostly custom character sheets but am branching out into adventures and similar content), and wondering if there is a reason more people haven't done so already. I sense an untapped market...