Web Research and find best american links

I need some one to do web research and find 500 best American websites in all regular categories. Organize links in 30-40 categories Here is the criteria for the links and categories. 1. 10 - 20 links in each category depends on the availability (min 10, max 20). 2. All links should have good google page rank and alexa rank (less than 50K). 3. More than 75% of the traffic should be originated from US. 3. Category Format: Category Name, short description, long description (not less 250 words or half page original content). 4. Links Format: url, Category, title, description (meaningful description you can copy from the site and edit), alexa rank, pagerank. Please send me an example of your work. Bidder should be originated from US. Happy Bidding.