Answer:
   
   Satmar is another major form of Chasidism. The name comes from the
   city of Satu Mare, in present-day Romania. Satmar has tens of
   thousands of adherents.
   
   Satmar was founded by Rabbi Yoel Teitelbaum (1887-1979); it is now led
   by his nephew Rabbi Moshe Teitelbaum. Satmar is based in the
   Williamsburg section of New York City and in the nearby Hasidic
   village of Kiryas Yoel. Although Satmar is large and very influential,
   it has not received much positive publicity, and is often subject to
   stereotyping.
   
   Rebbi Yoel Teitelbaum's major work was the Kuntress "Vayoel Moshe", in
   which he lays out his theory on the 'Three Oaths' that according to
   him forbid a Jew from creating a Jewish state in Eretz Yisroel before
   the coming of moshiach. His thought has been challenged by other
   chachomim, a notorious example of which is R' Meir Kahane in his sefer
   "Or Haraayon".
   
   Satmar Chassidim are "notorious" for giving and raising tzedakah. This
   doesn't usually get as much attention as their anti-Zionist beliefs.
   
   There are many excellent books on Satmar. These are listed in the
   [5]Satmar portion of the Reading List.
   
   Credit: Some of the information in this section was provided by Justin
   Jaron Lewis, Rabbi of Congregation Iyr HaMelech of Kingston, Ontario,
   from article on Satmar in "Readers Guide to Judaism" [ed. Michael
   Terry], published in Chicago by Fitzroy Dearborn in the year 2000.