Shea Bennett on the History of Hashtags

Shea Bennett on the History of Hashtags
http://www.mediabistro.com/alltwitter/history-hashtag-social-marketing_b59753
I'll be joining John Kellden Kristin Drysdale David Wells and special guest David Amerland  in a conversation about #hashtags  today at 9 AM PT/Noon ET. Join us.
https://plus.google.com/u/0/events/cka5tbc0tcsn106kctje1eliq1s