Do the Creative Commons licenses tell people to link back?

Mike Linksvayer:

Creative Commons licenses (since 2004 and excluding non-license public domain tools) allow the licensor to require a linkback. I consider that the main feature of the ‘attribution’ term. See 4(b) of http://creativecommons.org/licenses/by/3.0/legalcode

The easiest way to specify is to fill in the ‘Attribute work to URL’ field in the Creative Commons license chooser.

Addendum: Mike Linksvayer’s little blog