Aggregator Site

I want a site like [login to view URL] but for users in Beirut, Lebanon. It has to be as user friendly (and more if possible) as [login to view URL] I want users to sign up to post ideas, suggestions, recommendations and have the ability to rate, retailers, service providers, hotels, travels etc. on five star system. The site needs to support banner ads, and fixed ads that will be changed frequently. I want to create this site with the idea of maintaining it myself after I receive the finished product. I will collaborate the site idea with the coder (of choice) and would be interested in suggestions and input from the chosen coder.