from any website and paste it onto the box that opens beneath the message box that you type your post in.

However, TER has a strict rule that providers who link to their sites this way must have a TER logo on their sites, and I think TER would feel the same way if a hobbyist did this lest they create a backdoor exception to the rule.

To copy and past a URL, highlight the URL in the address bar at the top of the screen when you have the website open.  Right click the mouse on it and select "copy".  Then right click on the link URL box when you are posting a message and select "paste".  The URL will then appear in the bos.

You can give the URL a title on the line below that if you like.