Haredi (Ultraorthodox) jews

Most theologically conservative form of Orthodox Judaism. A follower of Haredi Judaism is called a Haredi (Haredim in the plural). In non-Jewish circles, it is sometimes referred to as Ultra-Orthodox Judaism, a term never used by those involved, who use the word Ḥaredi or other expressions instead.

Haredi (חֲרֵדִי) is derived from charada, meaning fear or anxiety, which in this context is interpreted as "one who trembles in awe of God" (cf. Isaiah 66:2, Isaiah 66:5).
Haredi Jews, like other Orthodox Jews, consider their belief system and religious practices to extend in an unbroken chain back to Moses and the giving of the Torah on Mount Sinai. As a result, they regard non-Orthodox streams of Judaism to be unjustifiable deviations from authentic Judaism.

-Lifestyle:

Haredi life is very family-centered. Depending on various factors, boys and girls attend separate schools and proceed to higher Torah study, in a yeshiva or seminary respectively, starting anywhere between the ages of 13 and 18. A significant proportion of young men remain in yeshiva until their shidduch, a marriage often arranged through facilitated dating. Many also continue study in kollel (a Torah study institute for married men) for many years after marriage. In many Haredi communities, studying in secular institutions is discouraged, although some have educational facilities for vocational training or run professional programs for men and women. Most men, even those not in kollel, will make certain to study Jewish texts (collectively referred to as Torah) daily. Families tend to be large, reflecting adherence to the Torah commandment "be fruitful and multiply"

Haredi poskim (authorities in Jewish law) forbid television and films, reading secular newspapers and using the Internet for non-business purposes. They feel that mobile phones should be programmed to disable internet and other functions that could influence their users in undesired ways, and most companies in Israel now offer basic cell phones with limited capabilities to accommodate Haredim. However, it appears that many Haredi people use the Internet, as evidenced by the large number of participants in "Haredi chat rooms".

Another important stricture is the prohibition of publishing/viewing photographs of women.

-Dress:

Many men have beards, most dress in dark suits, and wear a wide-brimmed hat (typically black) during prayer and while outside, and men wear a kippah at all times. Women adhere to meticulous tznius (modesty) standards, and hence wear long skirts and long sleeves, high necklines and some form of head covering when married (scarves, snoods, shpitzelach, hats, or wigs).

-Israel:

The vast majority of Haredi Jews rejected Zionism for a number of reasons. Chief among these was the claim that Jewish political independence could only be obtained through Divine intervention, with the coming of the Jewish Messiah.
The Haredim are relatively poor, compared to other Israelis, but represent an important market sector.

-Rabbinical organizations and dynasties:

Rabbis of the Edah HaChareidis rabbinical council of Jerusalem.
Rebbes of the Satmar Hasidim (originally Hungary, now New York).
Rebbes of the Gerrer Hasidim (originally Poland, now Israel).
Rebbes of Lubavitch.