Does it seem ethically problematic to recruit experimental subjects by way of a facebook post? I’m thinking of a project that has permission to recruit by word-of-mouth, by announcements posted to listservs, by posters hung up around campus or elsewhere in the city or passed out in person, etc. That is, permission for a pretty broad range of recruitment activities is in place. This is for a low-to-no-risk speech perception experiment. One could begin the facebook post with “People in X city:” or such, since it’s an in-person experiment. Facebook seems like a combination of a listserv with word-of-mouth. Just to clarify: I haven’t done this, but I’ve considered it. I’m curious what others think.