Using social media in social research

I'm really keen to connect with people at this conference who have used, or know about projects where social media, such as Facebook, SMS, have been used to do social research eg collect experiences of racism, collect opinions on social institutions such as the legal system, have online focus group discussions on social justice issues etc I'm especially interested in people who have used social media with poor or marginalised groups. Look forward to talking to you about your work and your experiences!