Rav Pinson's shiur (on Zera, R. Akiva, and Torah Sh'b'al Peh) can be found here: http://tinyurl.com/z9m764j
Rav Braun's shiur (on Shadinan: Brisk, Breslov, and Buber) can be found here: http://tinyurl.com/ha496ng
Jorian Polis Schutz's shiur (on Yosef's Seeds) can be found here: http://tinyurl.com/jzjjjfw