Dim MyRequest As WebRequest = WebRequest.Create("http://www.site.com/blah.asp")
Dim MyResponse As WebResponse = MyRequest.GetResponse()
Dim MyStream As StreamReader = New StreamReader(MyResponse.GetResponseStream)

If MyResponse.ContentType = "text/html" Then
     sString = MyStream.ReadToEnd
End If

MyStream.Close()
MyResponse.Close()