The International Society for the Study of Individual DifferencesIf you know of any other relevant websites, please forward them to me at mhoulihan@stu.ca
There are at least three other organizations that specialize in personality and individual differences and that publish personality research
By no means a complete list, the following universities have graduate training programs in personality research or individual differences. Two comments: some departments offer training in "psychopathology" that is almost identical to those programs that offer training in "personality".Also note that some departments do not have web pages, although the university does. (Also note that this part of the page is sadly out of date.)