Hi wheaten, if you want to add a link to your post or to a friend in an e-mail, first call up the web site you are thinking of on your computer. When you are there, use your mouse to direct the cursor to the web site address at the top of the web page. When you cursor is in the box containing the web site address, left-click your mouse and the background to the address will turn blue. Now, on your keyboard, press the control button (often just the letters Ctrl on the button) as well as the letter C at the same time(this will copy the web address). Now go to the place where you want to post the address (either an e-mail you are typing or a reply to a thread on Answer Bank). Now with your cursor flashing away in the e-mail or thread, press Control V and the web site link will appear in your message.
Hope that makes sense. Try it in an e-mail to yourself if you want to practice.