Well, I'm uploading files at uploading.com where are very good rates (tier 1 = 10$ per 1000 downloads, West Europe usally about 5-10$ per 1000 and also 2$/1000 from my country - Poland and few others). How to earn there a few dollars daily? Well, at start work hard. At start u will earn about 15c daily, but don't give up then! Try different ways. Make a blog (advertise it) and posting at forums. Check out traffic which in the forums where are u posting (many users from USA, Canada, UK etc). What files are downloaded most frequently? U can check out it in google and uploading it (uploading.com has a great remote upload and remote upload from Rs, so it's easier).
My friend is earning on it max 25$/daily, usually about 15$/a day. But as I said u have to do a hard work and later u can earn faster and more.