How to write a web application that can remotely log in to Yahoo?
<p>I have a project where I need to write a desktop or web application that takes your Yahoo user and ID somehow sends it to the Yahoo server and so you can log in. I don't have a clue what to do or where to begin. I've heard I have to use SSL and HTTPS but I don't know how. Any help is appreciated. 
PS. I use dot Net and C Sharp </p>
