This question came up and I wanted to provide a little answer here that cuts straight to what you need. I'll assume you have already opened a Youtube account and are able to navigate over to the upload your video page. That being done, you need to click on the link to start uploading your video. Just below that section, you want to enter your description in a way that will please Youtube and make it as easy as possible for visitors to click on your link and go to your site. Another benefit of making this link clickable is that the link points back to your website. Here is a picture of this in process.