Scrap all of these and start from scratch. Internet Marketing is very competitive. Most will fail. Think of the common people and their needs. Think about your friends. Think about why they use internet. What do they search on the net. Now think how you or your site can come to their help. Go to yahoo answers and see what questions people are asking. What their problems are. Can you provide a solution. If you can provide a solution you have a profitable business right there.
I've been down the same path as you, and through those painful experiences I've learned the most valuable lesson - In the world of Internet Marketing, there is no room for the Jack of all traits. Do ONE thing at a time and do it well. Only ever move on when you think you have fully exploited its potential. Every path can lead to success, so choose one you are most interested in and STICK TO IT. All the best.