How do I force people to like my facebook page before accessing the accompanying website?

[CofeeNate]

I'm not exactly sure what you are trying to do, but you can't require people to 'like' your facebook page in order to visit your website. However, you can show one view of your facebook page to non-likers, and another to those who 'like' your page. This is only able to occur inside of an app, though. You will have to run ads or other promotions to the url of that app, instead of to the general page link. In order to get this functionality, you will want to install the HTML iframe app to your page. Just search for 'HTML' inside of facebook, then click 'apps' on the left side. The icon is a star. Install the app on your page, and it is pretty straight forward. This is called 'fangating'.