I've heard it said that you should choose to blog about something that you know well and . . . like. This would keep you from running out of steam once when you don't make money as fast as you expected. But supposing someone wants to go straight into making money from the net. They have little bit of money to pay for content and they are willing to take a risk even if it means losing the money they put in. Which niche is the most profitable? Someone told me the real estate niche can make some quick cash. Is there something better?