Plugin to use Snap.com's web thumbnail service for placing a web image popup on external urls, see http://www.snap.com/about/spa1B.php

Visit snap.com, sign up and get your own code (looks like <script>...</script>)

Upload the plugin
Visit the LDM admin settings page and insert your snap code in the snap_key settings field

Whenever the url points to an external web site, a popup will appear with a thumbnail of the web site and a search engine field

This takes a few seconds to complete.

NB: snap is a neat service, but this plugin is incompatible with certain other plugins, e.g. the flashsites addon, and it changes the way 
external links open in LDM, which you may or may not like.  Take care. 

