There's a Word of Mouth (WOM) meme floating through the association blogosphere (thanks to social media rock star Maddie Grant), and here are some great posts to check out about the effectiveness of word of mouth marketing in associations.
Jamie Notter on how several association consultants (myself included) sold 1500 copies of a book solely through word of mouth.
Lindy Dreyer shares how WOM filled up a whole bar with Young Association Professionals for the dance party of the year at ASAE & The Center's annual conference in San Diego.
Peggy Hoffman addresses WOM and volunteerism.
Dana Theus delves into social media WOM campaigns.
You'll find links to others in these posts too. Great stuff.
Jamie tagged me on the meme so a WOM success story from me coming up soon.