To link to an e-mail address, click on the External Link tab and enter __ (mailto:_) followed immediately by the address.
Click the Insert/Edit Image icon (it looks like mountains) on the toolbar. Click Browse to locate the file. In fact images displayed in Confluence pages are attached to the page and you can see them on the Attachments tab.
How do I link to a YouTube video?
YouTube videos have addresses in the form: http://www.youtube.com/watch?v=-dnL00TdmLYImage Added
Click on the markup tag and add e.g. :
where you want the video to appear on your page. Wow!
How do I attach a file to a page?