This is a post about masterposts about resources and books for studying many languages. I made this since many people do not know about all the resources that have been posted.
Resources for Many Languages: → http://thelanguagecommunity.tumblr.com/ ←
Free Online Language Courses
Massive Language Resource
Classics Resource Masterpost
Celtic Languages Resources
Dutch, Afrikaans, West Frisian, Limburgish
Finnish, Estonian, Saami, Voro
Germanic Languages Resources
Scandinavian Language Resources
South Asian Languages Resources
Alien Languages of Star Trek
Learn Afrikaans Masterpost
Complete Online Arabic Resources
Arabic Learning Resources
Arabic Language Resources
Learning Arabic Masterpost
Armenian Language Masterpost
American Sign Language Masterpost
Resources to Lean Catalan
Mandarin Chinese Masterpost
Chinese Language Resources I
Chinese Language Resources II
Intermediate Chinese Resources
Croatian Language Resources
Czech Resources for Beginners
English Resource Masterpost
Finnish Beginner Resources
Intermediate-Advanced Resources
French Resource Masterpost
Georgian Language Masterpost
German Learning Resources
Free German Learning Resources
Dani’s Guide to German Language
Gothic Language Masterpost
Hebrew Language Masterpost
Hindi Language Masterpost
Hungarian Learning Resources
Learning Italian Resources
Resources for Learning Italian
Italian Resource Masterlist
Italian Language Resources
Italian Culture Masterpost
Japanese Learning Resources
Resources for Learning Japanese
Japanese Studying Resources
Beginning with Japanese Masterpost
Japanese Resource Masterpost
Resources for Learning Japanese
Japanese Language Learning Resources
Khmer Language Masterpost
Korean Textbook Masterpost
Korean Resource Masterpost
Korean Language Masterpost
Ultimate Korean Masterpost
Masterpost of Latin Video Resources
Nahuatl Language Masterpost
Persian Language Masterpost
Polish Self-Study Masterpost
Brazilian Portuguese Resources
European and Brazilian Portuguese Resources
Portuguese Resource Masterpost
Useful Romanian Resources
Russian Language Resources
Resources for Learning Russian
Scottish Gaelic Resources
Learn Scottish Gaelic Masterpost
Somali Language Masterpost
Spanish Resources: Oxford
Spanish Resources Masterpost
Swedish Learning Resources
Ukrainian Language Masterpost
Learn Vietnamese Masterpost
Yiddish Language Masterpost
**Last Updated: January 1, 2017**