Aquí os pongo enlaces a recursos de otros idiomas (añado poco a poco cuando surgen)
General:
https://weltreisewortschatz.mobi/
https://duonotes.fandom.com/wiki/Duolingo_Tips_and_Notes_Wiki The Notes of all the Duolingo Courses
Swahili:
http://de.enc.tfode.com/Suahelische_Sprache
https://www.suaheli.eu/ Wörterbuch Kiswahili-Deutsch
http://www.swahilicheatsheet.com/ Swahili Cheat Sheet
https://es.glosbe.com/sw/es Diccionario Swahili-Español
http://www.etranslator.ro/es/traductor-suajili-espanol-online.php Traductor Suajili-Español
https://www2.ku.edu/~kiswahili/
https://www.dw.com/sw/idhaa-ya-kiswahili/s-11588 News in Swahili from Deutsche Welle
Playlist for Swahili grammar videos:
Armenio:
https://glosbe.com/hy/en/ Diccionario Glosbe Armenio
Chino:
https://www.mdbg.net/chinese/dictionary Chinese Dictionary
https://collections.uiowa.edu/chinese/ The Chinese Reading World
https://www.yoyochinese.com/chinese-learning-tools/Mandarin-Chinese-pronunciation-lesson/pinyin-chart-table Pinyin Chart
http://www.hanyupinyin.cn/ Pinyin Pronountiation
https://chinese.yabla.com/chinese-pinyin-chart.php Pinyin chart with audio
Tudou and Yokou , the Chinese «Youtube»
Tagalog:
https://www.youtube.com/watch?v=PbGmkqZ2dpI&t=7s «Learn Tagalog videos»
Esperanto:
https://lernu.net/de/kurso/nakamura «Esperantokurs»
https://lernu.net/eo/vortaro Vortaro
http://www.thschuetz.de/esperanto/vortonline.php Vortaro Esperanto – Germana
http://www.learnlangs.com/esperanto/resources List of learning resources
http://esperanto.cri.cn/ Chinese Radio Online in Esperanto
https://enricbaltasar.com/correlativos-esperanto/ Correlativos en Esperanto
http://www.esperanto.es/hef1/index.php/virtuala-biblioteko virtuala-biblioteko
https://bertilow.com/pmeg/index.html Plena manlibro de Esperanta Gramatiko
http://vortaro.net/ Vortaro
https://tekstaro.com/ Tekstaro
Japonés:
https://jisho.org/ «Diccionario Jap-inglés con introducción de kanji por radicales o dibujando»
https://www.tofugu.com/ Several Japanese learning ressources
Coreano:
https://www.howtostudykorean.com/
Sueco:
http://lexin.nada.kth.se/lang/bildteman/index.htm Bildlexikon
http://digitalasparet.se/index.htm Linklist for studying swedish online
Finés:
https://uusikielemme.fi/ Finnisch for busy people
Ruso:
http://duo-russian-grammar.s3-website-eu-west-1.amazonaws.com/ Duolingo Grammar Notes
https://russianpodcast.eu/podcasts/ Russian Podcasts
http://www.russki-mat.net/d/Russisch.php Russischer Slang
https://cooljugator.com/ru Russian Verb Conjugation with many exapmples
(changing / the ru to /run or /rua you get the declination of the nouns and adjectives)
toki pona:
https://glosbe.com/en/mis_tok/ English-toki pona dictionary
https://tokipona.info/ toki pona en 76 ilustritaj lecionoj