On September 8, 2009 (20 Elul, 5769), the Baltimore community had a Kinus Hisorarus (communal gathering) for men on the topic of Tznius.  The Rosh Yeshiva, Rav Aharon Feldman, Shlita, was the first speaker, and set the tone for the entire evening.  Although the Rosh Yeshiva did not directly address pornography or the Internet, it's not difficult to apply much of what he said to the challenges we face.  

Especially on point is what the Rosh Yeshiva said near the end, about how breaches in Tznius (men being attracted to other women, and women trying to attract other men) have a profound effect on our Shalom Bayis.

The Rosh Yeshiva's speech is just under 20 minutes, and can be downloaded here.  

The link to the Rosh Yeshiva's speech is now available at the end of my post above.  

Many thanks to Guard for his assistance.

Rav Dovid Heber was the final speaker at the Kinus Hisorarus.  His topic was the challenges of technology and immodesty, both in and out of the workplace.
 
Rav Heber's 35-minute speech includes sharply criticizing Facebook (and other social networking services) as a breach of Tznius (3:00-4:50), as well as mentioning both GYE (10:05-10:11) and Internet pornography addiction (20:50-20:59).  Rav Heber speaks powerfully about how many of us live double lives, and how contradictions in how we live and what we expect from our children can, c"v, have very negative effects on how they turn out (20:17-29:41).

Rav Heber's speech is around 35 minutes, and can be downloaded here.  

The link to Rav Heber's speech is now available at the end of my post above.  

Many thanks to Guard for his assistance.