With the internet gaining ever increasing importance in today's world, here is a vocabulary exercise to help you with English terminology. Choose the correct word from the given answers to complement each definition!
1) money you must pay to access some sites:
2) a web site which acts like the centre of many other services like news, e-mail, shops. e.g. Yahoo:
3) the address of a web site. e.g. http://www.cnn.com: