Mindvalley

Have a crap ton of sidebars and widgets setup?
Losing sleep because you’re afraid to lose all those settings if someone messed with it?
Look no further. Use this widget to
<ol>
<li>Take snapshots of your current widget settings.</li>
<li>Restore previous snapshots.</li>
<li>Import / Export snapshots as XML.</li>
</ol>

MindValley Widget Snapshot

Takes snapshots , enable import and export widget settings & configurations.

sam2kb

This plugin allows any user to add previews of websites right in the content of their posts using a simple [thumb]http://domain.com[/thumb] format. Users may also “optionally” turn on mouseover previews. No purchase or registration is required to use the plugin. Optional upgrade enables PRO features such as “Full-length Captures”, “Free Width Captures” and “Refresh on Demand”.
<ol>
<li>Easily embed website previews in posts</li>
<li>Flexible caching system allows you to store retrieved screenshots on your server</li>
<li>[opt] Display custom images for queued or error thumbshots</li>
<li>[opt] Display thumbshot URLs in a safe manner without linking them directly to the target website</li>
<li>[opt] Display mouseover header preview over thumbshots</li>
<li>[opt] Display mouseover pop-up preview over external links in your posts</li>
<li>[opt] Utilize several Thumbshots.RU PRO features</li>
</ol>
Take a look at Thumbshots.RU for more information (http://www.thumbshots.ru/en/ “Website screenshots provider”).

Thumbshots plugin

This plugin uses the Thumbshots.RU API to replace special tags in posts with website screenshots. Note: This plugin is no longer maintained.

MindValley Widget Snapshot vs Thumbshots plugin