Learning on the Marcos and Adina Katz YUTorah site is sponsored today by Eric Goldstein to mark the yahrtzeit of his mother Blanche Goldstein z”l, Etta Brana bat Yitzchak and by Sara and Dani Resnick in memory of their Zaidy, Dov Aryeh ben Yosef HaLevi and by Harris and Elisheva Teitz Goldstein l'ilui nishmas HaRav HaGaon Rav Mordechai Pinchas Teitz zt'l on his 26th yahrzeit on 4 Teves