Questions about Site.com should have this tag.
Site.com does not support Visualforce pages. Salesforce.com offers Force.com Sites which can be used to publish websites backed by Visualforce; however, Force.com Sites is not a CMS.
The Site.com developer force wiki has a suggested Site.com learning path and more resources and links helpful for learning more about Site.com.
Attribution to: Peter Knolle
This content is remixed from stackoverflow or stackexchange. Please visit https://salesforce.stackexchange.com/questions/1104