If you want to use the Web, your site must be connected to the Internet. If you don't have an Internet connection, the first step is to get connected.
Once you're connected, you may still encounter problems in reaching Web sites outside of your site. Such problems most commonly arise from the use of firewalls. If your site is connected to the Internet through a firewall but you can't reach any external machines from your internal network, you need to do two things: