keyword - webservice

I am looking for somebody who can find a free webservice/api on internet which accepts a keyword and returns information about that keyword. Website has to be well/authentic. Something like [login to view URL], etc. You will consume that webservice in c#/vs2005. You will have an application with one textbox, one button and a label. I will enter a keyword in the textbox and click on button and your code will call the webservice and get the result back and put it on the label. That webservice must be free. Your job is to find one too (along with writing this code). Please don't ask me which webservice to use because I don't know. Maybe gogle provides such a thing. Information returned can be something like this [login to view URL] (when I entere toyota on wiki site). You must send me updated code everyday!