Links

Information concerning ICAO Language Proficiency Requirements
ICAO's "Doc 9835, Manual on the Implementation of Language Proficiency Requirements” -2nd edition - provides all information of the requirements including good practice in language testing.
For further information on the worldwide implementation on LPRs see ICAO's Flight Safety Information Exchange (FSIX).
Movies on the necessity of the ICAO language proficiency requirements:
Organisation concerned with Aviation English: http://www.icaea.pata.pl
The websites of major test service providers:
ETA - English Test for Aviation (Emery-Roberts)
Testing method of Eurocontrol – ELPAC (English Language Proficiency for Aeronautical Communication)
RELTA – RMIT (Royal Melbourne Institute of Technology) English Language Test for Aviation
TEA – Test of English for Aviation
VAET: Versant Aviation English test (Ordinate)
TELLCAP®- Test of English Language Level for Controllers and Pilots
Information on language test development and management:
http://languagetesting.info/ (interesting videos, helpful for managing quality of language tests)
Information on language testing in accordance with the CEFR – Common European Framework of Reference for Languages (published by the Council of Europe):
http://www.coe.int/t/dg4/linguistic/Manuel1_EN.asp#TopOfPage
http://www.coe.int/T/DG4/Portfolio/documents/Guide%20October%202002%20revised%20version1.doc
Final Report on a Survey of Aviation English Tests by J Charles Alderson, Lancaster University
http://www.ealta.eu.org/documents/archive/alderson_2008.pdf
Information on linguistics of English as a world language (English varieties worldwide, English as a lingua franca)
To get an impression of various forms of pronounciation amongst so-called "native speakers" of English:
http://www.world-english.org/accent.htm
The following movie gives eleven samples of English used by speakers of English as a second language (Note: The speakers' nationality corresponds with the flags in order of their appearance, i.e. Singapore, Malaysia, Thailand, Hong Kong, China, Australia, India, France, Pakistan, Germany, and Russia.)
http://www.youtube.com/watch?v=gLuVAd52mgg
Analyses of aircraft incidents/ accidents:
Archives of aviation accidents and incidents:
http://aviation-safety.net/database
http://atc-news.com/archives/category/air-safety-incidents/
Cockpit voice recordings and transcripts of accidents:
http://www.planecrashinfo.com/lastwords.htm
Other intersting websites:
http://www.skybrary.aero/landingpage/
Internet Radio: „Perspectives in aviation safety”: http://www.talk2k.com/faa/archives.htm
Monitoring ATC radio:
http://www.landings.com/_landings/pages/live-atc.html
http://www.surfmusik.de/flug.htm
http://www.futurastudios.com/atc.html
Live flight tracking: http://flightaware.com/
Flight planning: http://skyvector.com
Kostenlose VFR-Flugplanung: http://fl95.de
Great websites for learning English:
For more check here.
A placement test can be found here.