There is a big world out there, and volunteers can make a significant impact in helping one reach out to others and grow his/her PTA membership. In fact, word-of-mouth marketing tied for the top spot as the most effective method of new member recruitment in Marketing General's 2010 Membership Marketing Benchmarking Report. So getting volunteers' help is not just a good idea, but an essential part of membership development. In this article, the author offers three steps to get volunteers plugged in to their membership marketing efforts.