English

English is the official language of the following countries:
United Kingdom, USA, Canada, Australia,
Zimbabwe, South Africa, New Zealand, Philippines, 
Singapore, Belize, Jamaica, Guyana, American Samoa, 
Anguilla, Antigua, Bahamas, Barbados, Belau, Bermuda, 
Botswana, British Indian Ocean Territory, British Virgin 
Islands, British West Indies, Brunei, Cameroon, Cook 
Islands, Dominica, Ethiopia, Falkland Islands, Fiji, Gambia, 
Ghana, Gibraltar, Grenada, Guam, Ireland, Jersey, Kenya,
Kiribati, Lesotho, Liberia, Malawi, Malta, Mauritius,
Micronesia, Midway Islands, Namibia, Nauru, Nigeria,
Niue, Norfolk Island, Pakistan, Pitcairn, Puerto Rico,
Samoa, Seychelles, Sierra Leone, Solomon Islands, 
Somalia, St. Helena, St. Kitts-Nevis, St. Lucia, 
St. Vincent and Grenadines, Swaziland, Tokelau,
Tonga, Trinidad and Tobago, U.S. Virgin Islands, 
Uganda, Vanuatu, Wake Island and Zambia

Sprachprofi Files: too many to mention, select target
									  language from list

Sentences for Travellers

Grammar (in French)   Grammar (in German)

Courses:
Sprachprofi English course for Germans
English course (in French)
English course (in Korean)
English course (in Somali)
Advanced course (in English

Practise English by playing an online game

Practise English grammar and comprehension

Exercises

Meet people, do exercises and competitions

Study aids

Irregular English verbs

Online dictionary

Free help translating a phrase from/to English

Professional (paid) translations from/to English 

Resources for offline learning:
English electronic dictionaries, translators & software
Grammar in Use
Vocabulary in Use
Concise Oxford English dictionary
Beginner's ESL dictionary
American idioms and some phrases (& exercises)
How to prepare for the TOEFL
More...
English products from worldlanguage.com

Misc:
Tongue Twisters in English
English literature (read online)
English news on CNN
English news on BBC