pass data between websites asp.net

Hi,
I am using asp.net. I wanted to pass data from form fields. I have a file Webform1.aspx and its corresponding c# file Webform1.aspx.cs

In Webform1.aspx.cs i have
------------------------------------------------------------------------------------

            public void Button1_Click(object sender, System.EventArgs e)
            {
                  Server.Transfer("WebForm2.aspx");
            }

            public void Button2_Click(object sender, System.EventArgs e)
            {
                  
                  Response.Redirect("http://peacock.com/asp-scripts/data_test.asp?TextBox1=" + TextBox1.Text,true);
            
                  
            }
      
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well in the method button2_click(...) i use the response.redirect method to call the webpage on some other website.As u can i pass fields as  querystring.

I was wondering if there is a way so that i  dont have create a querystring and post the form. u know something like
Response.Redirect("http://peacock.com/asp-scripts/data_test.asp",true); and still have the form fields post onto the target website's webpage.

BTW i can't get Server.Transfer(..) method to call a webpage on some other website.
Lemme know if u need more info

Thanks in advance
Rajiv.