janrenz

With Usage of the wordpress.com inofficial webpage to screenshot function this plugins generates screenshots of websites. For more information check http://bdisco.de/wordpress-plugins/ 
There are a few options you can use in your shortcode [webscreenshot]:
url: full Url of the webpage which you want to have screenshoted (mandantory)
width: Pixel width of the screenshot (optional, default: 250)
refresh: If you want to reload the screenshot if it wasn’t generated on the first call (optional, default: true)
link: link image to given url (optional, default: true)
newpage: open link in new page (optional, default: true)
title: set link title tag (will be used as img alt tag also) (optional, default:”)
All img-tags generated will have a class called “webscreenshot”, the link will have a class called “webscreenshot-link” which you can you to perform additional style stuff
Feel free to make pull requests at https://github.com/jprberlin/web-screenshots

Web Screenshots

Displays Thumbnails of a given URL usings wordpress.com inofficial API. Use Shortcode [webscreenshot] with url and some  optional params.

Link

使用短代码 <code>[wp-openlink]</code> 将链接输出到一个页面，带网站缩略图（备注字段）和点击数（评分字段），不修改数据库也不需要专门存储图片。
缩略图格式说明：长宽为 100px * 70px，保存格式为 Data URI 编码，读写实时，每张占用数据库大小约为 10k。
<ol>
<li>可配置缩略图接口</li>
<li>可自定义链接样式</li>
</ol>
More information: <a href="https://www.xiaomac.com/open-link.html" rel="nofollow ugc">www.xiaomac.com</a>.

Open Link 图链

Use [wp-openlink] to output all your Blogroll in a Page, with website screenshot thumbnail and clicks countable, no database altered or images storage …

Web Screenshots vs Open Link 图链