"Word of Click" and Social Networking

Back in April of 2006, I used the term Word of Click to describe aspects of viral marketing / social networking performed by Skype to promote their products. This term helped describe the action taken by users to click, rather than speak, to share information over the web. Actions like:

• On site "Forward to a friend"
• Bookmarking
• Tagging
• etc...

Evidently, this has caught on in the web community since that posting about a year ago. I'm trying now to determine the roots of the phrase to see if it had originated on this blog. Wish me luck!