[xertox]

This is what I used in showthread. Adds description to the facebook share. Google plus and twitter preview as well... Also adds page number if link is manually shared from page 2+ of the thread.

<meta property="og:site_name" content="Fatwillie.Net - Forums" />

<meta property="og:title" content="{vb:raw thread.prefix_plain_html} {vb:raw thread.title}<vb:if condition="$pagenumber > '1'"> - {vb:rawphrase page_x, {vb:raw pagenumber}}</vb:if>" />

<meta property="og:description" content="{vb:raw thread.meta_description}" />

<meta property="og:url" content="{vb:raw vboptions.bburl}/{vb:raw thread_url}" />

<meta property="og:type" content="article" />

I think it would be pretty sweet if there were some way to grab the video or image URL so that could be embedded via meta tags as well. Anyone know of a way to grab the video/img URL when it is submitted via the editor?