The Content plugin will choose the URL of the current page (and there's no parameter to override that).
If you want to set the Like button url to the Facebook page, you'll have to use our SCSocialWidget module or the JFBCLike easy-tag. With those if you set the URL to your FB page (e.g.
www.facebook.com/SourceCoast/), clicking Like will allow the user to like the Page itself, not the URL on your local site. The user will just be prompted to make sure they want to Like your FB page when the button is pressed.
You can test out the behavior with the FB Like Button generator at
developers.facebook.com/docs/plugins/like-button/ to make sure it's what you want before switching to use the SCSocialWidget/Easy-tag solution.
-Melissa