More Thumbshots 

Source: Guardian Unlimited

Thumbnail images of websites are sometimes called thumbshots, and you can now get them with the DMoz Open Directory - a sort of open source version of Yahoo - thanks to Thumbshots.org. This is a non-profit project spawned by Smartdevil, which describes itself as "the leader in web preview technology". The site also offers guidelines to help Thumbshot's bots generate nice previews of their pages. You can see thumbshots in action at, for example, Domains of Spain.

www.thumbshots.org
www.thumbshots.org/guidelines.aspx
www.smartdevil.com
http://domainsofspain.com