If you can get around 1000 organic visitors each day, you can earn upwards of 2000$ from your blog. Of course you need to have google adsense . But you can make much more if you link some affiliate sites to your blogger site.
I look forward to earn such amount soon. I really don't think 1000 organic visitors can get you $2000. To earn 10-20usd daily using AdSense, you need to have 4-5k daily visitors.
