The link below is encrypted with Shift Cypher of unknown shift::
This link will take you to a CS course offered by edx starting 1st Jan, 2014.
The answer to this problem lies in the link below. But this link too is encrypted with the shift used to encrypt the above link. Go to the original link which is encrypted below and you will find your answer there.
Request and Clarification:
For example, if 'abc123' were to be encypted with Shift Cypher, it will be 'def123' and the shift used to encypt this text is 3 because each letter is shifted by 3 places in aphabetical order.