Asynchronous Programming in C#

public async void AsyncIntroParallel()  
{  
    Task<string> page1 = new WebClient()
                .DownloadStringTaskAsync(new Uri("http://www.weather.gov"));  
    Task<string> page2 = new WebClient()
                .DownloadStringTaskAsync(new Uri("http://www.weather.gov/climate/"));  
    Task<string> page3 = new WebClient()
                .DownloadStringTaskAsync(new Uri("http://www.weather.gov/rss/"));  
    
    WriteLinePageTitle(await page1);  
    WriteLinePageTitle(await page2);  
    WriteLinePageTitle(await page3);  
}