Last fall, I was contacted by the webmaster for the Neel Family organization website. He had found my father's YDNA profile on Ysearch and found many similarities to the Neel research on their website. For the last several months, they have been putting together a database for their Neel DNA research with particular emphasis on the Southern states. Even though my YDNA surname is McNeill, they are looking for all Neel derivations that have Southern ancestry from prior to 1900.
For further information, please visit their website: http://www.neelfamily.org/. For more information on their published Neel research visit here.