Yahoo provides a shared SSL area on its hosting plans. This is very nice as you don’t have to get your own SSL certificate but it does give a strange URL like Yahoo secure site so its not for anyone concerned about having their own unique URL.
I also ran into a really annoying issue. Yahoo provides a convenient form to get directions that you can add to a site but don’t provide a secure site for any of the images. So, Internet Explorer gives out that warning message asking if you want to see only secure stuff! My work around was just to host the images myself on the shared SSL server. You would think that Yahoo would make all of its offerings work together properly – especially for something so simple.