Well, all these ideas are useful and viable, but people would benefit way more if only one of the ideas was explained and laid out in a step-by-step manner. Reading about 10, 15 or 20 ideas is entertaining, but only a well-explained process with real-world actions brings in money. And any money-making idea will fail without traffic, and not just any traffic but lots of traffic of very interested users. How to attract heaps of people who are interested in that specific thing you have to offer - that's where the path to success is.