Proscribed

It has just been announced that Islam4UK (founded by Anjem Choudary) and parent group al-Muhajiroun (founders Omar Bakri Muhammad and Anjem Choudary) are to be banned under 2000 Terrorism Act, which allows the home secretary to proscribe groups which are "concerned in terrorism". Its offshoots the Saviour sect and al-Ghurabaa are already banned. But who else is banned? The following list is taken from the Home Office website; see also Guardian and Wikipedia.

Irish groups

Continuity Army Council (CAC) - NI Republican group, split from Provisional IRA in 1986
Cumann na mBan - Irish women's paramilitary group, linked to Irish Volunteers, formed 1914
Fianna na hÉireann - Name used by various Irish Republican groups, originally a youth group in West Belfast early in 20th century
Irish National Liberation Army (INLA) - Northern Irish Republican group, split from Official IRA in 1972 because they believed the OIRA was too moderate, has now renounced violence
Irish People's Liberation group (IPLO) - Split from INLA in 1986, shut down by PIRA in 1992
Irish Republican Army (IRA) - Various Irish Republican groups going back to early 20th century, of which Original IRA, Provisional IRA (traditionalists who split from OIRA in 1969 after OIRA recognised British and Irish governments), Continuity IRA (broke from PIRA in 1986 when PIRA recognised Republic of Ireland), and Real IRA (broke from PIRA in 1997 over PIRA's support for peace process) are most well-known
Loyalist Volunteer Force (LVF) - Loyalist Northern Irish group, founded by Billy Wright, who left or was expelled from UVF in late 1990s; claimed it was ceasing operations in 2005, but may continue as a purely criminal gang
Orange Volunteers - Loyalist NI group, formed from members of Loyalist Volunteer Force and Ulster Defence Association following 1998 Drumcree conflict
Red Hand Commando - Loyalist NI group, linked to Ulster Volunteer Force
Red Hand Defenders - Loyalist NI group, with members of Ulster Defence Association and Loyalist Volunteer Force
Saor Éire - Trotskyite Irish Republican group active 1967-75
Ulster Defence Association (UDA) aka Ulster Freedom Fighters (UFF) - Loyalist NI group; used UFF name for terrorist actions; formed in 1971 and ended armed campaign in 2007
Ulster Volunteer Force (UVF) - Loyalist NI group, founded 1966, ended armed campaign in 2007

Other international groups

17 November Revolutionary Organization (17N) - Greek Marxist group; named after 1973 rising against Greek military junta; anti-USA
Abu Nidal group (ANO) - militant Palestinian group, secular and socialist
Abu Sayyaf (ASG) - Filipino Islamic group fighting for autonomy for Bangsamoro region; name means "father of swordsmith"
Al-Gama'at al-Islamiya (GI) - Egyptian Islamist group
Al Gurabaa (aka Al-Ghurabaa) - British Islamist group, formed from Al-Muhajiroun which disbanded in 2004. Name from hadith "Islam began as something strange and will end as something strange ... paradise is for the strangers (al Ghurabaa)."
Al Ittihad Al Islamia (AIAI) - Somali Islamist group allegedly linked to Al-Qaeda; now defunct
Al-Qaeda aka Al Qaida - Islamist movement formed by combining the wealtho of Saudi Arabian Osama bin Laden with the expertise of Egyptian Islamic Jihad, inspired by ideas of Sayyid Qutb
Ansar Al Islam (AI) - Kurdish Sunni/Wahhabi group
Ansar Al Sunna (AS) aka Jamaat Ansar al-Sunna - "Army of the Followers of the Sunna", Sunni Iraqi group founded in 2003, possibly linked to Al-Qaeda in Iraq
Armed Islamic Group (Groupe Islamique Armée) (GIA) - Algerian Islamist militia who hijacked Air France Flight 8969 and killed thousands of Algerians
Asbat Al-Ansar - Lebanese Sunni group, allegedly linked to Al Qaeda; name means "League of Partisans" or "Band of Helpers"
Babbar Khalsa (BK) - Sikh group trying to create independent Khalistan in Punjab; founded in late 1970s
Baluchistan Liberation Army (BLA) - campaigning for independence for Pakistani region of Baluchistan/Balochistan
Basque Homeland and Liberty (Euskadi ta Askatasuna) (ETA) - Basque separatists, Marxist
Egyptian Islamic Jihad (EIJ) - Egyptian Islamist group led by Ayman al-Zawahiri; affiliated with Al-Qaeda
Groupe Islamique Combattant Marocain (GICM) - Moroccan terrorist group responsible for Madrid train bombings
Hamas Izz ad-Din al-Qassam Brigades - Palestinian Islamists, military wing of Hamas
Harakat-Ul-Jihad-Ul-Islami (HUJI) aka Harkat-Ul-Jihad-Ul-Islami - Sunni terrorist group founded in Pakistan during Soviet occupation of Afghanistan; backed by Pakistan government and linked to Osama bin Laden
Harakat-Ul-Jihad-Ul-Islami (Bangladesh) (Huji-B) - Bangladeshi branch of above
Harakat-Ul-Mujahideen-Al-Alami (HuM/A) and Jundallah - Pakistani Islamic group; active in Kashmir; formerly Harakat Ul Ansar (HuA); links with Osama bin Laden
Harakat-ul-Mujahideen (HM) - Pakistani Islamist group, split from Harakat-Ul-Jihad-Ul-Islami
Hezb-E Islami Gulbuddin (HIG) - Afghan Islamist faction of Hezbi Islami Party; funded by Pakistan in 1980s
Hizballah External Security group aka Hizballah Military Wing - Lebanese Shia Islamist group
International Sikh Youth Federation (ISYF) - Sikh pro-independence group
Islamic Army of Aden (IAA) - Yemeni Islamist group
Islamic Jihad Union (IJU) - Uzbek Islamist group, split from Islamic Movement of Uzbekistan
Islamic Movement of Uzbekistan (IMU) - Uzbek Islamist group, operated out of Tajikistan and Afghanistan trying to overthrow President Islam Karimov of Uzbekistan
Jaish e Mohammed (JeM) - Pakistani Islamist group, "The Army of Mohammed"
Jammat-ul Mujahideen Bangladesh (JMB) - Bangladeshi Islamist group, set off 500 bombs in August 2005
Jeemah Islamiyah (JI) - Southeast Asian Islamist group, active in Indonesia, Malaysia, Philippines, Singapore and Brunei; derived from Indonesian Darul Islam movement
Khuddam Ul-Islam (Kul) - Islamist group sprung from Jaish-e-Mohammed
Jamaat Ul-Furquan (JuF) - Islamist group linked to Khuddam Ul-Islam
Kongra Gele Kurdistan aka Kurdistan Workers Party (Partiya Karkeren Kurdistan or Kongra-Gel) (PKK) - Kurdish Marxist nationalists active in Turkey, formerly led by Abdullah Öcalan
Lashkar-e-Taiba or Lashkar e Tayyaba (LT) - South Asian Islamist group, based in Pakistan; seek independent Kashmir
Liberation Tigers of Tamil Eelam (LTTE) - Tamil militia fought for independence from Sri Lanka until defeated by Sri Lankan armed forces in 2009
Palestinian Islamic Jihad - Shaqaqi (PIJ) - Palestinian Islamic group descended from Egyptian Muslim Brotherhood
Revolutionary Peoples' Liberation Party - Front (Devrimci Halk Kurtulus Partisi/Cephesi) (DHKP/C) - Turkish Marxist-Leninist group; split from Devrimci Yol aka Dev Yol which in turn split from People's Liberation Party-Front of Turkey (THKP-C), which split from Revolutionary Youth Federation aka Dev Genç; "Party" refers to political side of organisation, "Front" the military
Al-Qaeda Organization in the Islamic Maghreb - Algerian Islamist militia; formerly Salafist Group for Preaching and Combat (Groupe Salafiste pour la Predication et le Combat) (GSPC); founded by Hassan Hattab, formerly of Armed Islamic Group (GIA) who broke with the GIA because of their slaughter of civilians; decimated by mysterious disease in January 2009
Saved Sect (al-Firqat un-Naajiyah) or Saviour Sect - Islamist group from UK, descended from Al-Muhajiroun; believed to be headed by Omar Bakri Muhammad; founded 2005, banned 2006
Sipah-E Sahaba Pakistan (SSP), renamed Millat-E Islami Pakistan (MIP) in April 2003 - Pakistani Sunni Islamist group
Lashkar-E Jhangvi (LeJ) - Palestinian Islamists, splinter group of Millat-E Islami Pakistan
Libyan Islamic Fighting Group (LIFG) - Libyan Islamist group, opposed to Colonel Gaddafi; some people link them with Al-Qaeda, but they claim to oppose attacks on civilians; may have been involved in MI6 plan to kill Gaddafi in 1996
Tehrik Nefaz-e Shari'at Muhammadi (TNSM) - Pakistani Islamist fundamentalist group; control area around Swat in Pakistan; founded by Sufi Muhammad in 1992; may now be in alliance with Baitullah Mehsud's Tehrik-i-Taliban Pakistan
Teyre Azadiye Kurdistan (TAK) aka Teyrebaz Azadiye Kurdistan - Kurdish group active in Turkey, attacking tourists; may have split from Kurdistan Workers Party (PKK) or may be subgroup of PKK

Ideally someone from Rock Family Trees could produce a more visually appealing presentation of this data.