WebClient myWebClient = new WebClient();
    html_source = myWebClient.DownloadString(address);
   sr = new StreamReader( html_source);
   using (sr)
   {
        //тут я делаю парсинг
   }

string[] str_arr = Regex.Split(str, "article class=\"oMed\"");

public string GetSubString(string str, string start_marker, string end_marker)
        {
            string substr = "";
            int start_index = str.IndexOf(start_marker) + start_marker.Length;
            if (string.IsNullOrEmpty(end_marker))
            {
                substr = str.Substring(start_index);
            }
            else
            {
                int stop_index = str.IndexOf(end_marker, start_index);
                substr = str.Substring(start_index, stop_index - start_index);
            }
            return substr;
        }

  string[] separators = new string[] { "split token" };
  string[] str_arr = str.Split(separators, StringSplitOptions.None);

private string[] SplitSections(string html_page)
{
     string[] separator = new string[] { "article class=\"oMed\"" };
     string[] str_arr = html_page.Split(separator, StringSplitOptions.None);
     return str_arr;
}

for (int j = 1; j < sections.Length; j++)  //j = 1 to skip header section
{
    freelancer = html_parser.ParseSection(sections[j]);
    if (freelancer != null)
    {
        if (ApplyFilter(ref freelancer))  //search parameters
           PopulateData(ref freelancer);
    }
}

public Freelancer ParseSection(string section)
{
    string strline = "";
    Freelancer freelancer = new Freelancer();
    sr = new StringReader(section);
    using (sr)
    {
         while ((strline = sr.ReadLine()) != null)
         {
             ParsePersonalInfo(strline, ref freelancer);
         }
    }
    return freelancer;
}

public void ParsePersonalInfo(string str, ref Freelancer freelancer)
        {
            //get person name
            if (str.Contains("\"name\">"))
            {
                freelancer.Name = GetSubString(str, "name\">", "</span");
            }
            //get person rate per hour
            if (str.Contains("oRate"))
            {
                string temp_str = GetSubString(str, "\">", "/hr");
                string rate = temp_str.Substring(1); //remoove $ sign
                freelancer.Rate = Convert.ToDouble(rate);
            }
            //get person total working hours
            if (str.Contains("oHrs"))
            {
                freelancer.Hours = Convert.ToInt16(GetSubString(str, "\">", "</span"));
            }
            //get person location
            if (str.Contains("oLocation"))
            {
                freelancer.Location = GetSubString(str, "\">", "</span");
            }
            //get person last active date
            if (str.Contains("Last active"))
            {
                string date = GetSubString(str,"datetime=\"","\">");
                freelancer.LastActive = Convert.ToDateTime(date);
            }
            //get person portofilio count
            if (str.Contains("oPortfolioItems"))
            {
                freelancer.PortfolioItems = Convert.ToInt16(GetSubString(str, "\">", "</span"));
            }
            //get person tests count
            if (str.Contains("oTestsCount"))
            {
                freelancer.TestsCount = Convert.ToInt16(GetSubString(str, "\">", "</span"));
            }
            //get person description
            if (str.Contains("<p>")) //start of paragraph
            {
                section = Sections.Description;
            }
            if (section == Sections.Description)
            {
                freelancer.ContractorDescription += str;
            }
            if (str.Contains("</p>")) //end of paragraph
            {
                freelancer.ContractorDescription += str;
                section = Sections.None;
            }
            //get person skills
            if (str.Contains("oSkillsList"))
            {
                section = Sections.Skills;
            }
            if (section == Sections.Skills)
            {
                if (str.Contains("oTag oSkill"))
                {
                    freelancer.Skills += GetSubString(str, ">", "</") + ",";
                }
                if (str.Contains("oMoreSkills"))
                {
                    section = Sections.None;
                }
            }
            //get person stars
            if (str.Contains("oStars"))
            {
                string substr = GetSubString(str, "title=\"", " S");
                freelancer.Stars = Convert.ToDouble(substr);
            }
        }