Though when it comes to my business i make use of facebook ad manager to do my promotion and that of a partner as well,and this is due to the fact that i am not that ready to own a site yet and i have been doing it effectively with great results.Have you ever managed another site while also managing your own? Do you like doing this? Or does it cause you any problems at times? I've done this myself over the years and haven't had much of a hitch. But, problems can arise, but that's to be expected.