I have 1 english blog and i don't know how much money i can make in future? example: 10 000 users per day and PR3. how much $$$ per month?
I think it depends on how or what method you want to monetize your blog. You can earn from adsense, or by link sales, or CPA, or referral.
I really consider article marketing why? because with article marketing you will get index permanently and that iam using you can check submityourarticle.com you can also check its review at ebusinessreviews.net