Where to find Nursing Student Externships in GA?

Hey everyone! I'm looking for an externship for nursing students that I could do next summer, but I don't know where to start looking for applications and information. I went to a couple of hospital websites that I'm interested in externing, but I'm having a hard time finding info on the externships. I live in Gwinnett, so externing at Gwinnett Medical Center or somewhere near where I live is preferable, but I also would love to extern at Emory Univ. Hospital. Does anybody have any advice or suggestions on where I should look or whom I should be contacting?? Thanks!!