Greek Orthodox Archdiocese of America   -  http://www.goarch.org/ 
Greek Orthodox Metropolis of Atlanta  -  http://www.atlanta.goarch.org/
Saint Photios Greek Orthodox National Shrine  -  http://www.stphotios.com/
Orthodox Christian Mission Center (OCMC)  -  http://www.ocmc.org/
International Orthodox Christian Charities (IOCC)  -  http://www.iocc.org/