What is a "link"?
A link can be as simple as your Aunt Millie found a great web page, and she wants you to see it. And if Aunt Millie knows enough of her computer basics, she doesn't even need to tell you anything, she can just email you a link to that website. You'll just be able to click on it and in a matter of moments see exactly what Aunt Millie is looking at based on that link that she sending you. Sometimes you may want to send somebody something that is very, very big, that takes up too many megabytes and is just too chunky to really be pushed through an email. So nowadays it's actually very easy to take that big object, maybe a huge photo, a set of architectural plans or a whole proposal that has many different components to it and it's possible to upload that information and park it on a server, maybe something that's hosted for you. Therefore, rather than trying to send somebody on the other side of the world this big chunky piece of information, you can actually just send them a little piece of code that they can click on, that will point right to that server and allow them to access that information directly from where it's been parked.
