This article on the effectiveness and importance of local activism, coupled with this ShieldWall Network article on how to begin to get involved in your local community as a person of influence, should get some creative juices flowing and sparkling synapses firing:
Get involved in the local issues which concern you, and meet others who share your concerns. Often, they also share your values and ideals. Those most amenable to cherry-picking and radicalization will be easy to spot. They look and sound more like you than the rest. Make friends, get to know people, sound them out, then lead them forward.