Snap is search engine, Its image search engine is more advanced than any other search engine. It has launched an amazing service for Web Masters called “Snap Preview Anywhere”.It gives the the preview image of links on a website on mouse over. I have installed it for this blog, just keep mouse on any link on my blog & view the preview of the target website.It is very easy to install, No sign ups, Just enter your site URL & get the code, Paste it in your web page.Visit www.snap.com