SHUVU, it is an organization that Rav Pam z”tl started for Russian Children in E”Y. They have opened quite a few schools and have been widely successful in being m’karev Jewish Russian Children and through them their parents as well. They make them Bar Mitzvas and make them shidduchim and chassnas as well. It is amazing to watch a child go through the Shuvu system and become a true bas or baal Torah and shomrei mitzvos.
The other I would say is Justice for Sholom to help get Sholom Mordechai Rusbashkin a fair sentence or even a release on time served.