#include syntax question

What is the difference, if any between

#include “Charliplexing.h”

and

#include <Charliplexing.h>

both seem to work just fine. Some files use the quotation marks, and others use the less than and greater than signs. Does using one over the other change the meaning or does the compiler simply support both methods?

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1289997035
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1264734949

Thank you! I searched but I didn’t find this. This is just what I was looking for!