I gather from your profile that you have posted various projects
Therefore,I don't think that I have to explain to you how to
organize content or market a site :) - although I understand how to promote content.
I will say, however, that my rate for writing content is 5 cents US per word so $1000 would get you 50 400-word articles or other variations that add up to that amount of content.
I am experienced in writing web content, writing and submitting to article directories, as well as using the social networks.
I also offer a Twitter Management package for businesses.
Discover more about my work at my profile.