Michael Gambino is an American actor who plays Martin Tillage on Castle. Michael Gambino at the Internet Movie Database.
World Wide Web definition: The World Wide Web is another way to describe the Internet, which is a network of computers which are connected and that share information and allow communication around the world. An example of the World Wide Web is the Internet.
Thus http://www.example.com is a URL, while www.example.com is not. URLs occur most commonly to reference web pages (http), but are also used for file transfer (ftp), email (mailto), database access (JDBC), and many other applications. Most web browsers display the URL of a web page above the page in an address bar.