Did you try to find anything at all. You will find plenty of samples:http://bit.ly/Q6JA1m
Perhaps this is not what you really want
Your question in not completely incorrect, but can be greatly improved. You should have re-formulated it:"How to use Wikipedia, Google, CodeProject and StackOverflow.com?"
If you asked and got good Answers, the Questions like your original one would not be needed!—SA