DouKaku?

using System;
using System.Net;
using System.Text.RegularExpressions;

class Program
{
    static void Main(string[] args)
    {
        string url = "http://tinyurl.com/create.php?url=" + args[0];
        WebClient wc = new WebClient();
        string r = wc.DownloadString(url);
        MatchCollection mc = Regex.Matches(r, "<blockquote><b>([^<]+)</b>");
        Console.WriteLine(mc[1].Groups[1].Value);
    }
}