shawfactor

This plugin allow you to grab a screenshot of a remote url and save into your own word press media library.
<h4>Features</h4>
<ul>
<li>Uses the wordpress.com ‘mshots’ functionality to automatically take screenshots of websites..</li>
<li>Automatically adds the screenshot to the WordPress media library</li>
<li>Redirects you to the edit screen once the screenshot is in the media library.</li>
<li>Once the bookmarklet is installed you don’t even need to copy and paste a url (just navigate to the site you wish to screenshot and select the bookmark).</li>
</ul>

LH Browser Shots

Add screenshots of remote wesbites directly to the wordpress media library, either enter the site url in an onsite input box or click a bookmarklet.

Matthias Pfefferle

Adds OExchange and Web Intents support to WordPress’ “Press This” bookmarklet (http://oexchange.org).
Supported Plugins:
<ul>
<li>the webfinger-plugin: <a href="https://wordpress.org/plugins/webfinger/" rel="ugc">https://wordpress.org/plugins/webfinger/</a></li>
<li>the host-meta-plugin: <a href="https://wordpress.org/plugins/host-meta/" rel="ugc">https://wordpress.org/plugins/host-meta/</a></li>
</ul>
From the website:
<blockquote>
This’ll help you get up and running, whether you’re a service that can accept content, a site that has content to share, or a tool of some sort. Remember that OExchange isn’t limited to “sharing” things; it applies to any case where one service wants to send URL-based content to another — microblogging, translating, printing, whatever.
</blockquote>

OExchange

Adds OExchange and Web Intents support to WordPress

LH Browser Shots vs OExchange