Hi dear, Getting 1000 subscriber is really hard now. But when your videos get daily 1,000 views. The money making on YouTube become really easy.
1.Apply for sponsership site like Famebit, etc
2.Join ClickBank select one product promote it in your videos.
3.Try to join affiliate network which pay per email submit, SMS, email verification, etc.
There are many ideas to earn money online on Youtube.It will take lot of time here...So this much here only.