title: Tutorial about web service
body: <p>Can anyone give me good tutorial about web service?
   i find below tutorial with example but doesn't work</p>
  
  <p><a href="http://icodeblog.com/2008/11/03/iphone-programming-tutorial-intro-to-soap-web-services/" rel="nofollow noreferrer">1</a><br>
  <a href="http://grabalife.com/2009/10/19/using-net-web-services-and-dataset-objects-in-your-iphone-app/" rel="nofollow noreferrer">2</a><br>
  <a href="https://stackoverflow.com/questions/352676/how-can-i-connect-iphone-and-web-service-and-get-xml-data">3</a></p>
  
  <p>for example if i want to show weather in my app should i get data from specific web site or i can get data from yahoo or other site about weather</p>