This is a neat way to mimic content from another site. Your web server can pose as a web browser, visit a web site of your choice, extrapolate content, modify it, and then feed it back to a user on your site. Using a search and replace routine, you can tell the script exactly what to look for and what to put in it's place. A snippet of JavaScript can be instantly removed, or the name of the site can be automatically modified. Don't like the style of the site? It's easy to instruct this script to grab only a portion of the remote site, to change images, and then display it with a header and footer of your choice. Warning: this could be illegal if your intent is to steal content and pose it as your own. You should ask permission of the original site owner before proceeding.