Reading the Content of an URL in HTML format

using System.Net;
using System.Text;
using System.IO;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        string contents = ReadHtmlFromUrl("http://www.google.com");
        Literal1.Mode = LiteralMode.Encode;
        Literal1.Text = contents;
    }

    public string ReadHtmlFromUrl(string Url)
    {
        const int TIMEOUT = 3000;
        HttpWebRequest myWebRequest = null;
        HttpWebResponse myWebResponse = null;
        Stream receiveStream = null;
        Encoding encode = null;
        StreamReader readStream = null;
        string content = null;

        try
        {
            myWebRequest = HttpWebRequest.Create(Url) as HttpWebRequest;

            myWebRequest.Timeout = TIMEOUT;
            myWebRequest.ReadWriteTimeout = TIMEOUT;

            myWebResponse = myWebRequest.GetResponse() as HttpWebResponse;
            receiveStream = myWebResponse.GetResponseStream();
            encode = System.Text.Encoding.GetEncoding("utf-8");
            readStream = new StreamReader(receiveStream, encode);
            content = readStream.ReadToEnd().ToLower();
            if (readStream != null) readStream.Close();
            if (receiveStream != null) receiveStream.Close();
            if (myWebResponse != null) myWebResponse.Close();
        }
        catch (Exception ex)
        {
            return ex.Message;
        }
        finally
        {
            readStream = null;
            receiveStream = null;
            myWebResponse = null;
            myWebRequest = null;
        }
        return content;
    }
}