[Air-L] email groups

Hi all, I'm currently looking at email groups created exclusively by and for members of indigenous groups. These are e-groups hosted by Yahoo. I've tried to search for related studies but the only ones I came across are email lists or list-servs based on professional or organizational interests. Does any one know of studies focusing on email groups formed on the basis of ethnicity? Many thanks, Liezel Longboan Liezel Longboan PhD Research Student School of Journalism, Media and Cultural Studies Bute Building, Cardiff University King Edward VII Avenue Cardiff CF10 3NB