在我单击Facebook共享按钮时，出现弹出窗口，因为它没有显示图像和描述。可能是什么原因？
<fb:share-button class="meta">
<meta name="medium" content="mult"/>
<meta name="title" content="name of fan page"/>
<meta name="description" content="description of fan page"/>
<link rel="image_src" href="url to image location" />
<link rel="target_url" href="http://facebook.com/Anti.Social.Development"/>
</fb:share-button>
您需要使用Open Graph Protocol。正如他们网站上给出的，这是电影页面的完整示例：
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:og="http://ogp.me/ns#"
xmlns:fb="http://www.facebook.com/2008/fbml">
<head>
<title>The Rock (1996)</title>
<meta property="og:title" content="The Rock"/>
<meta property="og:type" content="movie"/>
<meta property="og:url" content="http://www.imdb.com/title/tt0117500/"/>
<meta property="og:image" content="http://ia.media-imdb.com/rock.jpg"/>
<meta property="og:site_name" content="IMDb"/>
<meta property="fb:admins" content="USER_ID"/>
<meta property="og:description"
content="A group of U.S. Marines, under command of
a renegade general, take over Alcatraz and
threaten San Francisco Bay with biological
weapons."/>
...
</head>
...
</html>
如果您检查w3c，则需要将DocType更改为XHTML + RDFa