William Friedman published two on-line articles:
"Why Women Can and Must Lay Tefillin"
The Jewish Daily Forward, January 22, 2014.
http://blogs.forward.com/forward-thinking/191430/why-women-can-and-must-...
"Sacrifice, Egalitarianism, and Sociology: A Response to Gottlieb & Liben"
Times of Israel, November 14, 2013
http://blogs.timesofisrael.com/sacrifice-egalitarianism-and-sociology-a-...