Well, it'll probably take several articles before you get accepted into Adsense and start earning. And even then, money will come in very slowly at first. Do research and see what's being searched for a lot to think of good titles for your Hubs that will show up in search resuts. You could write reviews of products, and then include links to the product on Amazon or Ebay; you'll earn money for each reader who clicks the link and buys. Just make sure if you do this that your product Hub still contains useful information and isn't just a couple sentences and a link to a product. Good luck!