Ishmael

http://www.answering-islam.org/Index/I/ishmael.html

http://www.bible-history.com/isbe/N/NABATAEANS%3B+NABATHAEANS/

http://www.godrules.net/library/fausset/NEWfausset_c0.htm

http://bibleatlas.org/arabia.htm

http://nabataea.net/nabajoth.html