1. Congregation Beth Hamedrosh

http://www.shul.n3.net/

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2. Lubavitch of the Mainline

http://www.lubavitchmainline.org/

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3. The Philadelphia Community Kollel

http://www.phillykollel.org/

http://dolphin.upenn.edu/~ocp/

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5. Young Israel of the Main Line

http://www.yiml.org/

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Orthodox Jewish Information of Greater Philadelphia

http://www.philly-direct.com/frum/

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Orthodox Events on the Main Line

http://koshersync.com/