This is a guest post written by Dan Zarrella, the award winning social media scientist at HubSpot. For more social media science, be sure to register now for our Science of Social Media marketing webinar.

Posted Dan Zarrella on 8/22/11 4:45 PM
This is a guest post written by Dan Zarrella, the award winning social media scientist at HubSpot. For more social media science, be sure to register now for our Science of Social Media marketing webinar.