Social Media is blowing up with blogs, facebook groups, twitter groups and more. Below will be listed as many Oregon social media sites as I can find, as I find them.
Deschutes County, OR - Bend Genealogical Society
Douglas County, OR Genealogical Society
Genealogical Council of Oregon
Grant Co, OR Genealogical Society
Jackson County, OR - Jackson County Genealogy Library
Lane County, OR - Cottage Grove Genealogical Society