Also known as source code: code viewed in its most basic format (text) without being processed by your computer or browser. To view this web page's raw code in Internet Explorer or Firefox, click 'View' in the browser menu and select 'Page source' or 'Source'.
To force a web page to load again, so that you can see if it has been updated. Also useful if the page has frozen or isn't working properly. In most browsers the keyboard shortcut for this is the F5 button at the top of your keyboard.
Twitter language for taking a Tweet somebody else has posted and posting it again so that your followers can see it. It is good netiquette to credit the person who originally tweeted the message by including their username in the tweet.
The ability to connect to a service away from home - a roaming internet contract with a mobile phone operator will allow you to use the internet at any location. This word isn't used much any more now that such technology is relatively common.