Learning on the Marcos and Adina Katz YUTorah site is sponsored today by Ruth Peyser Kestenbaum and Miriam & Alan Goldberg to mark the ninth yahrtzeit of their father, Irwin Peyser, Harav Yisroel Chaim ben R' Dovid V' Fraidah Raizel Peyser and by Rhea and Leon Landau in memory of Jacob Frost and for a refuah shleimah for Getzel Avraham ben Yehudit and by Dan & Irene Lawson for a refuah shleimah for Zev Dov Halevi ben Esther Leah