UPDATE: October 2015
NEW LINK: https://support.skype.com/en/faq/FA99/what-are-skype-buttons-and-skype-uri-links-and-how-do-i-use-them
REVISED January 2014
Looking for your Skype URL? It is EASY to find and here's how!
http://myskype.info/ - NOT ANYMORE - SKYPE disabled this URL.
Clipping is a handy way to collect important slides you want to go back to later.