On November 12, 2010, the CAO went live. In the beginning, it searched across around 300 archival collection; now it searches some 6500 and is always growing. If your historical society, library, archive, museum or school would like to participate, contact Brian Stevens (stevensb[at]wcsu.edu) for more information or go to the CAO About pages.
If you already participate in the CAO, THANKS!