You would promote this like any other way, through such as your personal social networks online, build a reputable LinkedIn network, attend and present chamber of commerce meetings, rotary clubs, etc. if be interested in something like this. I actually think I had one before but might have gotten removed. Consider situations like mine for improving your service perhaps helping guaranteeing that pages will stay up.
I used to help curate W so I know that others can evaluate your pages and flag down... Message me if you want to share with me how you do this...