After arriving in Brooklyn, New York from the Soviet Union, the Kazens moved to Cleveland after being encouraged to do so by the Lubavitcher Rebbe.
[3] In 1988, Kazen was inspired to create a website to aid in Chabad's outreach after discovering message boards on Fidonet.
[5] Kazen's outreach included organizing a Passover service on a boat near Antarctica, sending kosher recipes to Jews worldwide, making thousands of Jewish documents and texts available online and using the site to answer e-mails and frequently asked questions as part of "Ask the Rabbi".
[2] Kazen was featured in the 24 Hours in Cyberspace photographic exhibition at the Smithsonian's National Museum of American History.
As of 2013, 488,431 people worldwide are subscribed to Chabad.org's emails, the site has 25 "Ask the Rabbi" responders, 744,370 questions answered in the past decade, content from 1,890 authors, hundreds of kosher recipes and thousands of video and audio files.