Wikipedia turn seven this year and is a source of information for 683 million visitors every year. A poster child for user-generated content, Wikipedia has grown from its first year in which just 12 articles were created to over 10 million today in 253 different languages. That's a whole lot of content, and naturally, being able to easily search it would be helpful for anyone wanting to get the most out of the web's favorite encyclopedia.
Ten ways to Search Wikipedia.