Under links you find a collection of links people consider worth taking a look at. In combination with a little image of the page you find a short description about what you can expect when you take a glimse at the page. Also the pages are linked when you go under read more. When sending in link material please make sure that the owner of the page is fine with you using a screenshot from his page. I recommend you send them a little mail to let the owner know what you are using it for.