Lists of Middot
“The Torah is greater than the priesthood and greater than royalty, seeing that royalty is acquired through 30 virtues, the priesthood twenty-four, while the Torah is acquired through 48 virtues.”
These 48 Middot are listed here on the URJ website: http://www.reformjudaism.org/study-48-middot
Rabbi Mendel Menachem Lefin of Satanov identified 13 Middot in Cheshbon HaNefesh (Accounting of the Soul), published 200 years ago in Lithuania.
Rabbi Menachem Mendel Lefin was influenced by reading Benjamin Franklin’s autobiography. Franklin listed these 13 virtues, along with a rigorous method for self-improvement. Franklin’s methods may have had an influence on subsequently developed Mussar practice.
A comparison of Franklin’s list of virtues with the 13 Middot in Cheshbon Ha0Nefesh, and the 13 Middot listed by Rabbi Israel Salanter, the founder of the modern Mussar movement, can be found here.
National Mussar Resources
Local Mussar Resources
http://bayareamussar.org/ - aggregates information about Mussar classes and events across the Bay Area.