The topics are wide ranging - hobbies, gardening, cooking, Islamic fashion, parenting, cars, etc. Right now we are open to suggestions from our JV partners.
Sometimes we tend to pick topics that are quite "grand" or complicated. Actually for membership sites you need a very simple topic and expand it from there.
The keyword here is "expandable". As long as the topic is expandable then we already have a winner there. With a bit of creativity and luck we might even be able to stretch the contents for many, many years while engaging our members on different platforms.
You might think nobody will ever subcribe to such a topic. But with good marketing and quality content we are quite confident of getting an audience for it. You will be very surprised and amazed at how far and how well it can go.
Please, do not limit yourselves to the market in the country you are in now or its surroundings. You need to think at a global level as you will have members from all over the world, even from day one itself. Such is the power of the Internet. Yes, a proper and well planned membership site with universal content can easily qualify as a global business.