first question : I am aiming to create a small empire of Facebook groups under a brand name, with different topics in each , such as Buy & sell, Vacancies etc etc.. in the country i live (420k Population), the biggest group has 70k people. I am aiming to create like 20 groups with 20-30K members in each group. I searched some websites with around 80-100K LOCAL TRAFFIC and their rates for their largest advert in size, are around 100-200 Euros per week. Now I was hoping that with 20 groups (if i can find a way do them without getting banned every day lol :/) I will ask advertisers for 100-300 euros for the cover photo and 25-50 euros for the pinned post every 4 WEEKS depending on joined members. Do you think it is easy to find Cover Photo and Pinned post sales? (ie. making money from advertising?) Because if i get the minimum of 100 + 25 every 4 weeks for every group = 2500 euros / 4 weeks = 32500 euros yearly, which is half of what the prime minister gets paid in my country second question : so i was using the 'discover' groups and i came across this particular group How can you make a group which requires a specific email or something else to join? and also how can you make a group within a group?