Bluga.net WebThumb 
Posted on April 05, 2008
Snapping the Web
Bluga.net WebThumb provides a web service API for generating web thumbnails and full size snapshots of websites. You can see a demo of the service in the form below. WebThumb offers more features (including Flash 9 support) and quicker response times then any other service. You can snapshot any page and get a thumbnail back in around 40 seconds.
Once you register you get access to the API and 100 free credits per month. Thumbnails cost one credit each with some features costing an additional credit. If you need more credits then that, you can purchase them at a rate as low as $1.75 per 1000. These credits never expire and are used after your free 100.