var webRequest = WebRequest.Create(@"http://photo-51.netau.net/changelog");

        using (var response = webRequest.GetResponse())
        using (var content = response.GetResponseStream())
        using (var reader = new StreamReader(content))
        {
            List<string> lines = new List<string>();
            var strContent = reader.ReadToEnd();
            string line;
            while((line = reader.ReadLine()) != null){

                lines.Add(line);
                listBox1.Items.Add(lines);
            }
        }