My new started service for creating screenshots of any web page is used more and more. http://www.sharepointkicks.com/, http://www.dotnetkicks.com/ (those two sides only used it while WebSnapr was not working) and http://www.worldwidirectory.com/  are using the thumbnail service to visualize outgoing links on their web site.
thumboo is creating thumbnails and full sized screenshots of any web page, try it for free at http://thumboo.com/ .
The next days the history overview page will be available. There you are able to have a look at all screenshots I made on a domain or a complete URL.