This article is based on material authored by members of the news.newusers.questions Moderation Board and nnq-workers mailing list.
There are many different newsgroups where you can learn about specific cultures and specific areas of the world. The best place to look is in the soc hierarchy, among all of the soc.culture.* newsgroups. In these newsgroups, you can ask about cities, languages, history, cultural traditions, and the like. In many cases, these newsgroups will have discussions in two or three different languages.
The following is a list of the soc.culture.* newsgroups, current as of April 2017. If you want to see if there is a newsgroup or a mailing list for a culture not listed here, please ask the people in news.groups.questions for pointers to newsgroups and mailing lists about a specific culture.
soc.culture.afghanistan Discussion of the Afghan society. soc.culture.african Discussions about Africa & things African. soc.culture.african.american Discussions about Afro-American issues. soc.culture.african.american.moderated African-American perspectives. (Moderated) soc.culture.albanian Albania and Albanians around the world. soc.culture.algeria From A to Z about Algeria. soc.culture.arabic Technological & cultural issues, *not* politics. soc.culture.argentina All about life in Argentina. soc.culture.asean Countries of the Assoc. of SE Asian Nations. soc.culture.asian.american Issues & discussion about Asian-Americans. soc.culture.assyrian Assyrian culture, history, language, current diaspora. soc.culture.asturies Asturian culture. soc.culture.australian Australian culture and society. soc.culture.austria Austria and its people. soc.culture.baltics People of the Baltic states. soc.culture.bangladesh Issues & discussion about Bangladesh. soc.culture.basque Basque culture and related issues. (Moderated) soc.culture.belarus All things about Belarus. (Moderated) soc.culture.belgium Belgian society, culture(s) and people. soc.culture.bengali Sociocultural identity of worldwide Bengali population. soc.culture.berber The berber language, history, and culture. soc.culture.bolivia Bolivian people and culture. soc.culture.bosna-herzgvna The independent state of Bosnia and Herzegovina. soc.culture.brazil Talking about the people and country of Brazil. soc.culture.breton All about Breton culture and Brittany. soc.culture.british Issues about Britain & those of British descent. soc.culture.bulgaria Discussing Bulgarian society. soc.culture.burma Politics, culture, news, discussion about Burma. soc.culture.cambodia Cambodia and its people. soc.culture.canada Discussions of Canada and its people. soc.culture.caribbean Life in the Caribbean. soc.culture.catalan The Catalan language and the lands where it is spoken. soc.culture.celtic Irish, Scottish, Breton, Cornish, Manx & Welsh. soc.culture.chile All about Chile and its people. soc.culture.china About China and Chinese culture. soc.culture.colombia Colombian talk, social, politics, science. soc.culture.cornish All things Cornish and Cornwall, worldwide. soc.culture.costa-rica Topics about Costa Rica. soc.culture.croatia The lives of people of Croatia. soc.culture.cuba Cuban culture, society and politics. soc.culture.czecho-slovak Bohemian, Slovak, Moravian and Silesian life. soc.culture.dominican-rep The life and people of the Dominican Republic. soc.culture.ecuador The culture and people of Ecuador. soc.culture.egyptian Egypt, and its society, culture, heritage, etc. soc.culture.el-salvador Topics about El Salvador, Central America. soc.culture.esperanto The neutral international language Esperanto. soc.culture.ethiopia.misc Unmoderated forum to discuss Ethiopian culture. soc.culture.europe Discussing all aspects of all-European society. soc.culture.filipino Group about the Filipino culture. soc.culture.french French culture, history, and related discussions. soc.culture.galiza Galicia, on the Iberian Peninsula. soc.culture.german Discussions about German culture and history. soc.culture.greek Group about Greeks. soc.culture.guinea-conakry Guinea (ne French Guinea, in West Africa). soc.culture.haiti Haiti specific development and cultural issues. soc.culture.hawaii Aloha kakou, E KOMO MAI! Eh, no forget hemo da shoes. (Moderated) soc.culture.hmong Discussion of Hmong people and its culture. soc.culture.honduras General topics regarding Honduras and Central-America. soc.culture.hongkong Discussions pertaining to Hong Kong. soc.culture.hongkong.entertainment Entertainment in Hong Kong. soc.culture.indian Group for discussion about India & things Indian. soc.culture.indian.delhi Information related to Delhi, capital of India. soc.culture.indian.goa About Goa, India's smallest state. (Moderated) soc.culture.indian.gujarati Gujarati cultural group. soc.culture.indian.jammu-kashmir The culture of Jammu & Kashmir. soc.culture.indian.karnataka Karnataka's culture, history, and present. soc.culture.indian.kerala Culture of the people of Keralite origin. soc.culture.indian.marathi Discussion related to Marathi Culture. soc.culture.indonesia All about the Indonesian nation. soc.culture.intercultural People of mixed "culture", "ethnicity", "race". soc.culture.iranian Discussions about Iran and things Iranian/Persian. soc.culture.iraq Iraq, its society, culture and heritage. soc.culture.irish Ireland and Irish culture. soc.culture.israel Israel and Israelis. soc.culture.italian The Italian people and their culture. soc.culture.japan Everything Japanese, except the Japanese language. soc.culture.japan.moderated Anything Japanese. (Moderated) soc.culture.jewish Jewish culture & religion (cf. talk.politics.mideast). soc.culture.jewish.moderated Discussion of Jewish culture and religion. (Moderated) soc.culture.jewish.parenting Issues about raising Jewish children. (Moderated) soc.culture.jordan All topics concerning The Hashemite Kingdom of Jordan. soc.culture.kenya Kenyan peoples, politics, culture, and affairs. soc.culture.korean Discussions about Korea & things Korean. soc.culture.kurdish People from Kurdistan and Kurds around the world. soc.culture.kuwait Kuwaiti culture, society, and history. soc.culture.kuwait.moderated Kuwaiti culture, society, and history. (Moderated) soc.culture.laos Cultural and Social Aspects of Laos. soc.culture.latin-america Topics about Latin-America. soc.culture.lebanon Discussion about things Lebanese. soc.culture.liberia The culture of Liberia. soc.culture.maghreb North African society and culture. soc.culture.magyar The Hungarian people & their culture. soc.culture.malagasy Madagascar and the Malagasy culture. soc.culture.malaysia All about Malaysian society. soc.culture.mexican Discussion of Mexico's society. soc.culture.mexican.american Mexican-American/Chicano culture and issues. soc.culture.misc Group for discussion about other cultures. soc.culture.mongolian Everything related to Mongols and Mongolia. soc.culture.native Aboriginal people around the world. soc.culture.nepal Discussion of people and things in & from Nepal. soc.culture.netherlands People from the Netherlands and Belgium. soc.culture.new-zealand Discussion of topics related to New Zealand. soc.culture.nicaragua Topics related to the country of Nicaragua in general. soc.culture.nigeria Nigerian affairs, society, cultures, and peoples. soc.culture.nordic Discussion about culture up north. soc.culture.occitan Speakers of Provencal/Occitan/Langue d'Oc. soc.culture.pacific-island Culture of the pacific islands (except Hawaii). soc.culture.pakistan Topics of discussion about Pakistan. soc.culture.pakistan.politics Political discussions on Pakistan. soc.culture.pakistan.religion Religious discussions related to Pakistan. soc.culture.pakistan.sports Sports in Pakistan. soc.culture.palestine Palestinian people, culture and politics. soc.culture.peru All about the people of Peru. soc.culture.polish Polish culture, Polish past, and Polish politics. soc.culture.portuguese Discussion of the people of Portugal. soc.culture.puerto-rico Puerto Rican culture, society and politics. soc.culture.punjab Punjab and Punjabi culture. soc.culture.quebec Quebec society and culture. soc.culture.rep-of-georgia The Caucasian Republic of Georgia and Georgians. soc.culture.romanian Discussion of Romanian and Moldavian people. soc.culture.russian All things Russian in the broadest sense. soc.culture.russian.moderated Moderated discussion of Russian culture. (Moderated) soc.culture.scientists Cultural issues about scientists & scientific projects. soc.culture.scottish Anything regarding Scotland or things Scots. soc.culture.sierra-leone The culture of Sierra Leone. soc.culture.singapore The past, present and future of Singapore. soc.culture.slovenia Slovenia and Slovenian people. soc.culture.somalia Somalian affairs, society, and culture. soc.culture.south-africa South African society, culture, & politics. soc.culture.south-africa.afrikaans The Afrikaans language and speakers. soc.culture.soviet Topics relating to Russian or Soviet culture. soc.culture.spain Spain and the Spanish. soc.culture.sri-lanka Things & people from Sri Lanka. soc.culture.swiss Swiss culture. soc.culture.syria Syrian cultural matters and affairs. soc.culture.taiwan Discussion about things Taiwanese. soc.culture.tamil Tamil language, history and culture. soc.culture.thai Thai people and their culture. soc.culture.turkish Discussion about things Turkish. soc.culture.turkish.moderated Issues related to Turks/Turkey. (Moderated) soc.culture.ukrainian The lives and times of the Ukrainian people. soc.culture.uruguay Discussions of Uruguay for those at home and abroad. soc.culture.usa The culture of the United States of America. soc.culture.venezuela Discussion of topics related to Venezuela. soc.culture.vietnamese Issues and discussions of Vietnamese culture. soc.culture.welsh The people, language and history of Wales. soc.culture.yugoslavia Discussions of Yugoslavia and its people. soc.culture.zimbabwe Culture and other issues pertaining to Zimbabwe.