WebSnapr is a free web service will will create a graphical thumbnail of any web page you want. While this can be done via screen prints and other screen capture applications, it takes a little knowledge to get what you want. Often, for example, the browser bars/menus and even other areas of the desktop are captured. This system knows you just want the web page.
This system could be useful for building a simple web page for students too young to read. So, instead of writing "Scholastic web site," you have an image of the home page.