Below is my presentation to the leadership of Toward Community: Unity in Diversity, a wonderful local organization promoting diversity. Actually, this is a revised version of the presentation, incorporating answers to some of the questions that arose in discussion. Several members of the group have since signed up as blog authors.
As librarians, we do technology training, both formally and informally. Sharing some Web 2.0 techniques in our communities seems appropriate. It's great that more local groups are reaching out to share information.