This file is an example of how to make a call to the YQL service.

YQLExample.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Web;
using Newtonsoft.Json.Linq;
namespace YQLExample
{
    class Program
    {
        static void Main(string[] args)
        {
            StringBuilder theWebAddress = new StringBuilder();
            theWebAddress.Append("http://query.yahooapis.com/v1/public/yql?");
            theWebAddress.Append("q=" + System.Web.HttpUtility.UrlEncode("select * from local.search where location='Nashville ,TN' and query='Fast Food'"));
            theWebAddress.Append("&format=json");
            theWebAddress.Append("&diagnostics=false");

            string results = "";

            using (WebClient wc = new WebClient())
            {
                results = wc.DownloadString(theWebAddress.ToString());
            }

            JObject dataObject = JObject.Parse(results);
            JArray jsonArray = (JArray)dataObject["query"]["results"]["Result"];

            foreach (var locationResult in jsonArray)
            {
                Console.WriteLine("Name:{0}", locationResult["Title"]);
                Console.WriteLine("Address:{0}", locationResult["Address"]);
                Console.WriteLine("Longitude:{0}", locationResult["Longitude"]);
                Console.WriteLine("Latitude:{0}", locationResult["Latitude"]);
                Console.WriteLine(Environment.NewLine);
            }

            Console.ReadLine();
        }
    }
}