1. Automation in terms of finding leads as wellI as email id. There are lots of other stuff which has to be automated in order to increase efficiency and productivity. 2. Nothing is impossible. But when your acquisition cost is low than it allows you to take risk and experiment. 3. On a monthly basis I am having 50% profit margin however it is being reinvested into building up portfolio , developing some in-house tools and developing few of my domains into micro niche blogs. 4. Well luck is still a very important factor but yeah when you scale up than its a different scenario.