To share the contest on Facebook, click on the contest tab, and then click "Share". In the "Share this Page" popup window, choose "On your Page" from the drop down menu. Select the desired page from the drop-down of pages you created in the Facebook account. Enter the text and click on the "Share Page" button. You can click on icon to share as well.
Also, you can publish the contest to any of your websites [Microsites]. You will find additional information at: http://support.votigo.com/entries/20865348-can-i-publish-my-campaign-to-my-own-site.