Learning on the Marcos and Adina Katz YUTorah site is sponsored today by Ruth Peyser Kestenbaum and Miriam & Alan Goldberg to mark the tenth yahrtzeit of their father, Irwin Peyser, Harav Yisroel Chaim ben R' Dovid V' Fraidah Raizel Peyser and by the Rotblat, Frohlich, and Dworken families to commemorate the 20th yahrtzeit of Rabbi Dr. Steven M Dworken, Harav Yisrael Mordechai ben Avraham Dovid